Jump to content

The Marshall Star for December 20, 2023


NASA

Recommended Posts

  • Publishers
32 Min Read

The Marshall Star for December 20, 2023

From left, Alneyadi, Hoburg, Bowen, and Rubio answer questions during the Marshall team member Q&A portion of their visit.

Crew-6 Connects with Marshall Team Members During Visit

By Celine Smith

One week after the 25th anniversary of the International Space Station, NASA’s SpaceX Crew-6 visited the agency’s Marshall Space Flight Center to share their experience during Expedition 69. The event was held Dec. 14 in Building 4316.

Expedition 69 began March 2 with Crew-6 flying on SpaceX’s Falcon 9 rocket from NASA’s Kennedy Space Center. While aboard the space station, the crew studied the behavior of flames in microgravity, grew cardiac tissue using 3-D culturing, and researched the impact of weightlessness on astronauts’ health.

Expedition 69 Crew-6 astronauts smile and hold a banner for a photo with team members from the Human Exploration Development & Operations Office at NASA’s Marshall Space Flight Center. From left, the astronauts are Sultan Alneyadi, Steven Bowen, Warren “Woody” Hoburg, and Frank Rubio.
Expedition 69 Crew-6 astronauts smile and hold a banner for a photo with team members from the Human Exploration Development & Operations Office at NASA’s Marshall Space Flight Center. From left, the astronauts are Sultan Alneyadi, Steven Bowen, Warren “Woody” Hoburg, and Frank Rubio.
NASA/Charles Beason

NASA astronauts Frank Rubio (flight engineer), Stephen Bowen (flight engineer), Warren “Woody” Hoburg (flight engineer), and UAE (United Arab Emirates) astronaut Sultan Alneyadi (flight engineer) answered questions from Marshall team members after viewing a short film summarizing the research done on Expedition 69.

Acting Center Director Joseph Pelfrey welcomed Marshall team members, thanking them and Crew-6 for all the effort that goes into making a mission successful.

“As we wrap up 2023, I just want to say how proud I am of our team and all the accomplishments that you have helped us achieve this year,” Pelfrey said. “Crew-6 is going to talk about their amazing experience. Marshall is a part of that experience and mission with the work we do here between Payload Operations, the Environmental Control and Life Support System and payload facilities and our Commercial Crew Program support. This is a great time to hear from our guests and celebrate our successes together.”

During the Q&A portion of the event, the audience learned about the strides in research being made on the station. Hoburg discussed the growing of human tissue while on the expedition.

“One day Sultan worked on heart muscle cells up there and we actually got to see the cells beating under the microscope,” Hoburg said. “We’re doing work in Low Earth orbit to help people back on Earth with potential heart disease. We also did work with the BioFabrication facility where we 3D-printed biological material. We printed the first-ever section of human meniscus.”

The microgravity environment of the station provides crew members with the ability to do more intricate work that cannot be done as well on Earth, Hoburg explained.

Expedition 69 is particularly important because it marks the longest time an American astronaut has been in space. The end of the mission concluded Rubio’s 371-day stay in space, which began with Expedition 68.

“I was excited to implement lessons learned right away,” Rubio said. “With your first mission, you’re learning. You typically don’t get to implement your better self until years later. I got that opportunity much sooner.”

From left, Alneyadi, Hoburg, Bowen, and Rubio answer questions during the Marshall team member Q&A portion of their visit.
From left, Alneyadi, Hoburg, Bowen, and Rubio answer questions during the Marshall team member Q&A portion of their visit.
NASA/Charles Beason

Rubio also used his experience to detail the effects of prolonged time in space on the body.

“You miss microgravity, in the sense that it’s a lot of fun to just fly around,” he said. “It takes 72 hours to 5 days to fully acclimate to microgravity. After two weeks, you’re completely used to it. When you come back to Earth, there’s a lot of aches and pains because the reality is offloading everything off your joints, especially your spine, feels good – specifically for those who are older. Like, for me, it feels like I’ve run a 5k every time I get up because my feet did nothing for a year, but your body does readjust.”

Expedition 69 also marks the first time a UAE astronaut has been to the station. Alneyadi spoke about his unique experience when asked about his participation in a culturally based event.

“I was presenting to the whole region, speaking Arabic, discussing the International Space Station, and showcasing the importance of its science,” Alneyadi said. “It was very impactful, and I felt honored to be a part of it as well. I see the impact on the students. They ask a lot of questions and have a lot of excitement.”

The event concluded with the opportunity for attendees to get their picture taken with the Crew-6 astronauts.

“People are the same everywhere, that’s the basics of humanity,” Bowen said when asked what’s the most exciting thing he’s learned from the international aspect of his work. From our perspective, we can’t see borders — it’s one Earth. At the very intimate singular level, people are people. We’re people, and we’re absolutely capable of doing amazing things.”

Learn more about Crew-6.

Smith, a Media Fusion employee, supports the Marshall Office of Communications.

› Back to Top

Take 5 with Jason Adam

By Wayne Smith

For Jason Adam, joining NASA wasn’t a career choice. It was a calling.

“A calling to push the boundaries of human knowledge, to turn the dreams of a starry-eyed child gazing up at the sky into a reality, and to be a part of humanity’s greatest adventure – the exploration of the universe,” said Adam, who is the manager for the CFM (Cryogenic Fluid Management) Portfolio Project at NASA’s Marshall Space Flight Center.

Jason Adam, manager for the CFM Portfolio Project at NASA’s Marshall Space Flight Center, holds a full-size resin model of a Thermodynamic Vent System Injector while standing in front of an Exploration Systems Test Facility within the CFM Laboratory in Building 4205.
Jason Adam, manager for the CFM Portfolio Project at NASA’s Marshall Space Flight Center, holds a full-size resin model of a Thermodynamic Vent System Injector while standing in front of an Exploration Systems Test Facility within the CFM Laboratory in Building 4205.
NASA/Danielle Burleson

The project develops key CFM technologies used to acquire, transfer, and store cryogenic fluids in orbit. The project is within STMD (Space Technology Mission Directorate) and develops crucial technologies for STMD and other mission directorates. Adam’s role extends across 12 states and six NASA centers, managing significant contracts and a multitude of complex activities nationwide.

Growing up in North Dakota, Adam said he always was captivated by the mysteries of the universe as he studied the night sky.

“(I was fascinated) by the endless expanse above, with its twinkling stars and wandering planets, and boundless possibilities,” he said. “This childhood wonder laid the foundation for my journey to NASA. It was here that my dream to explore the cosmos took flight.”

Working with projects like CFM enables Adam to live his dream, and he hopes to inspire others as well toward NASA’s mission of exploring the universe for the benefit of all.

“Remember your journey at NASA is not just about personal achievements, but also about contributing to the greater goal of exploring and understanding our universe,” he said. “Embrace this opportunity with enthusiasm and a commitment to excellence.”

Question: What excites you most about the future of human space exploration and your team’s role it?

Adam: Cryogenic fluid management is a critical and exciting area of technology, particularly in relation to the exploration of Mars for several reasons. One of the primary uses of cryogenic fluids in space exploration is as rocket fuel, specifically liquid hydrogen and liquid oxygen. These cryogenically stored fuels are highly efficient but must be kept at extremely low temperatures. Effective cryogenic fluid management is crucial for months or years-long missions to Mars, as it ensures that the spacecraft has enough fuel for the journey there, operations on the Martian surface, and the return trip. Mars missions are looking into using ISRU (in-situ resource utilization) to generate fuel from Martian resources. For example, water ice from Mars can be processed into liquid hydrogen and oxygen. Managing these cryogenic fluids effectively is essential for this process to be viable, enabling longer and more sustainable missions.

Cryogenic fluid management is not only a cornerstone to enable Mars exploration but also a catalyst for broader innovations in space travel and various terrestrial applications.

Question: What has been the proudest moment of your career and why?

Adam: There have been many proud moments in my 20-plus years at Marshall that originated at Stennis Space Center. Some of those moments include helping the shuttle return to safe flight through testing SSMEs (space shuttle main engines) at Stennis, to flying the Mighty Eagle Lander with a small team in the Marshall West Test Area, to now having the privilege of leading the CFM project with a group of spectacular individuals. In each case, I have been proudest when the team was accountable, authentic, passionate, inclusive, and highly competent. Those are the teams I cherish most and the type of environment I try to create as a leader.

Question: Who or what drives/motivates you?

Adam: Working at Marshall, my motivation is deeply rooted in the pioneering spirit of technological innovation and the quest for knowledge beyond Earth. Marshall, known for its groundbreaking work in developing systems that push the boundaries of space technology, serves as a constant source of inspiration for me. My drive is fueled by a profound passion for space exploration. The idea of contributing to missions that reach into the unknown, that test the limits of human ingenuity and reveal the mysteries of the cosmos, is what gets me up in the morning. I’m driven by the knowledge that the systems and technologies you’re helping to develop at Marshall will one day make space more accessible and safer for astronauts. This drive isn’t just about the technology itself, it’s about what that technology represents – the human desire to explore, to learn, and to constantly push forward. My motivation comes from wanting to contribute in a meaningful way to this grand endeavor. Each day at Marshall offers a new opportunity to be a part of something larger than yourself – to contribute to a legacy of exploration that benefits not just the present generation but also the future ones. In my role, I’m not just a witness to history in the making; I’m an active participant in shaping it.

Question: What advice do you have for employees early in their NASA career or those in new leadership roles?

Adam: First, follow your passion. Begin by immersing yourself in a field that truly fascinates you. NASA’s diverse missions span from the depths of the oceans to the far reaches of space, so align your work with what genuinely excites you. This passion will be your driving force and will keep you motivated through challenges.

Second, build a strong foundation. Whether your focus is technical, scientific, or administrative, strive to develop a robust base of knowledge and skills. Seek opportunities to learn from different projects and teams. This diverse experience will be invaluable as you progress in your career, providing a well-rounded perspective and a toolkit of solutions.

Third, nurture your team. As you advance into leadership roles, remember that your success is intricately linked to the well-being and performance of your team. Invest in understanding their strengths, aspirations, and challenges. Encourage an environment where everyone feels valued and motivated. Strive to create an environment where employees can bring their full self to work. 

Question: What do you enjoy doing with your time while away from work?

Adam: Outside of work, I enjoy spending time with my family. My wife and I have three children and two dogs. We like to spend time outdoors and enjoy camping around the region in our camper on some weekends. My wife and I also like to watch our alma mater, North Dakota State University, play football.

Smith, a Media Fusion employee and the Marshall Star editor, supports the Marshall Office of Communications.

› Back to Top

Pamela Bourque Named Chief Counsel at Marshall

Pamela Bourque has been named as chief counsel at NASA’s Marshall Space Flight Center. She has served as the center’s acting chief counsel since May, leading Marshall’s Office of the General Counsel team and overseeing the legal practice areas of procurement and contract law, partnerships and agreements, personnel law, ethics, fiscal law, employment law, intellectual property, and litigation. 

Marshall’s chief counsel is responsible for coordinating a full range of legal operations affecting the center and its organizations. The chief counsel also serves as a senior member of the NASA Office of the General Counsel’s enterprise leadership team.

Pamela Bourque, chief counsel at NASA’s Marshall Space Flight Center.
Pamela Bourque, chief counsel at NASA’s Marshall Space Flight Center.
NASA

From 2022 to April 2023, Bourque was Marshall’s deputy chief counsel, assisting the chief counsel with managing the legal operations of the center. She also supported the NASA legal enterprise on various senior teams, including the Legal Leadership Board, the Ethics Best Practices Working Group, the Deputy Counsel Forum, and participated as a mentor in NASA’s attorney mentoring program.

From 2005 to 2022, Bourque was the center’s assistant chief counsel for general law and litigation. She was the functional lead for litigation matters and provided Marshall management with legal advice and representation in the areas of personnel law, federal ethics standards, agreements, and other matters. Under her leadership, Marshall’s Ethics Program was recognized by the U.S. Office of Government Ethics with an Ethics Program Award. 

From 1993 to 2005, Bourque was an attorney-adviser at Marshall. She has previously served as president of the North Alabama Chapter of the FBA (Federal Bar Association), as well as the chair of FBA’s Labor Law Symposium for multiple years.

Bourque has been recognized with numerous NASA awards during her career, including the NASA Office of the General Counsel’s Meritorious Service Award, the NASA Exceptional Service Medal, the NASA Silver Achievement Medal, the NASA Space Flight Awareness Launch Honoree Award, the NASA Space Flight Awareness Silver Snoopy Award, the Marshall Engineering Directorate’s Service to Engineering Award, and other performance, on-the-spot, and peer awards. She has been profiled in Women at NASA. 

A native of Broussard, Louisiana, Bourque is a graduate of the U.S. Army Aviation and Missile Command’s Leadership Investment for Tomorrow (LIFT-II) Program, the Simmons Executive Leadership for Women/NASA Fellowship at Simmons College, the Department of Defense Mediator Certification Program, and she is currently enrolled in the Leadership of Greater Huntsville’s Connect Emerging Leaders Program.

Bourque earned a Juris Doctor degree from Tulane University School of Law in New Orleans, Louisiana, where she was a senior fellow. She received her honors baccalaureate degree from the University of Louisiana at Lafayette.

She lives in Madison with her husband, Max Patin. They have two children.

› Back to Top

Thomas Percy Named Systems Engineering and Integration Manager for Human Landing System Program

Thomas Percy has been named as the SE&I (Systems Engineering and Integration) manager for the HLS (Human Landing System) Program at NASA’s Marshall Space Flight Center.

The SE&I office oversees the development and verification of requirements, cross-discipline insight into commercial lander providers, and cross-program integration. The HLS SE&I team is also responsible for integration with the Moon to Mars Program in the areas of mission development, general analyses, and requirements management.

Thomas Percy, Systems Engineering and Integration manager for the Human Landing System Program at NASA’s Marshall Space Flight Center.
Thomas Percy, Systems Engineering and Integration manager for the Human Landing System Program at NASA’s Marshall Space Flight Center.
Credit: NASA/Danielle Burleson

Since 2021, Percy has been the deputy SE&I manager for HLS. From 2020 to 2021, he was the integrated performance lead for HLS, managing the team within SE&I responsible for trajectory analysis, environments, performance assessment, mission development, and metric tracking.

From 2016 to 2020, Percy was a space systems analyst prior to his role as chief architect of the Advanced Concepts Office at Marshall, where he supported the formulation of the HLS Program as well as transportation architecture studies for human Mars missions and the development of various robotic spacecraft concepts.

Prior to joining NASA in 2016, Percy spent 13 years working in private industry at SAIC as a section manager and support contractor to Marshall and Johnson Space Center. He also was a part-time instructor in the Mechanical and Aerospace Engineering Department at the University of Alabama in Huntsville off and on from 2006-2021.

His honors include a NASA Group Achievement Award: Human Landing System Source Evaluation Panel; NASA Exceptional Service medal; NASA Silver Achievement Medal Group: Human Landing System Source Evaluation Panel; and a NASA Group Achievement Award: Mars Basis of Comparison Reference Team.   

A native of Easton, Massachusetts, Percy received a bachelor’s degree in mechanical engineering from Rochester Institute of Technology in Rochester, New York, a master’s in aerospace engineering from the Georgia Institute of Technology in Atlanta, Georgia, and a doctorate in aerospace systems engineering from the University of Alabama in Huntsville.

He and his wife, Erin, live in Madison. They have three children.

› Back to Top

Mission Success is in Our Hands: Chelsi Cassilly

Mission Success is in Our Hands is a safety initiative collaboration between NASA’s Marshall Space Flight Center and Jacobs. As part of the initiative, eight Marshall team members are featured in new testimonial banners placed around the center. This is the second in a Marshall Star series profiling team members featured in the testimonial banners.

Chelsi Cassilly is a planetary protection microbiologist working for Jacobs at Marshall, where she’s been for almost three years. A native of Tennessee, she previously worked at Harvard Medical School in Boston, Massachusetts, as a postdoctoral fellow prior to joining Jacobs. She’s a graduate of Lipscomb University in Nashville, Tennessee, where she earned a bachelor’s degree in molecular biology, and of the University of Tennessee, Knoxville, where she earned a doctoral degree in microbiology.

Chelsi Cassilly is a planetary protection microbiologist working at NASA’s Marshall Space Flight Center.
Chelsi Cassilly is a planetary protection microbiologist working at NASA’s Marshall Space Flight Center.
NASA/Charles Beason

“It’s an honor and privilege to work for Jacobs and NASA,” Cassilly said. “I look forward to work every single day and consider myself exceptionally blessed with this opportunity I’ve been afforded.”

Question: What are some of your key responsibilities?

Cassilly: I support many different projects at Marshall. Primarily I help projects implement planetary protection. This includes the Mars Ascent Vehicle, which is part of the Mars Sample Retrieval Lander; a mission concept for a Europa Lander; and the lunar Human Landing System. I also manage the Planetary Protection Lab at Marshall, which is a fully functional biosafety level 2 lab. Funded by multiple sources, including NASA ROSES (Research Opportunities in Space and Earth Science), Marshall Cooperative Agreement Notices, Marshall Technical Excellence funding, and Jacobs Innovation Grants, I have both completed and continue to support multiple smaller experiments to determine microbial abundance within materials as well as sterilization methods.

Question: How does your work support the safety and success of NASA and Marshall missions?

Cassilly: NASA missions must meet the requirements laid out by headquarters. One subset of requirements on some missions is planetary protection, that is, preventing forward and backward microbial contamination. Marshall is involved with several missions where there are planetary protection requirements to meet. I help the center interpret and implement techniques to meet the requirements. I am currently the only point of contact for this discipline at Marshall, so I take seriously the responsibility of helping engineers understand unfamiliar terminology while also ensuring we are compliant with requirements, therefore helping achieve the goals of our missions.

Question: What does the Mission Success is in Our Hands initiative mean to you?

Cassilly: It means that success is personal. It means every single one of us can contribute in large ways to mission success simply by being ethical and maintaining our integrity as workers and as individuals.

Question: How can we work together better to achieve mission success?

Cassilly: We can support one another by encouraging safety, ethics, a culture of learning, ownership, and integrity within our teams. We can foster an environment where ownership is lauded and correction is not seen as negative, but rather as learning opportunities and areas of improvement. Benchmarking such progress of both individuals and teams, using mistakes and problems to propel us forward, will serve to strengthen teams, develop a sense of pride in our collective mission, and provide clear trajectory for our long-term efforts and goals.

› Back to Top

I am Artemis: Bruce Askins

Growing up, Bruce Askins was passionate about space and oceanography. His desire to explore other worlds always made him want to be an astronaut. Though he did not become an astronaut, Askins has built a 42-year career at NASA, and, as the infrastructure management lead for NASA’s SLS (Space Launch System) Program at the agency’s Marshall Space Flight Center, Askins is an integral part for the next generation of explorers.

Askins and his team are the gatekeepers and protectors of data and responsible for both cyber- security and physical security for the SLS Program. Under Askins’ leadership, his team ensures all data is stored properly, that information about the rocket shared outside NASA is done with proper data markings, and access is given to those that need it.

Bruce Askins
Bruce Askins is the infrastructure management lead for NASA’s SLS (Space Launch System) Program at the agency’s Marshall Space Flight Center.
NASA/Sam Lott

Askins wasn’t always familiar with the world of infrastructure and cyber security. As a mechanical engineering graduate from the University of Alabama in Huntsville, Askins began his career as part of NASA’s internship program. He considered himself imaginative, or “creatively driven,” which is why Askins originally pursued a career at NASA.

“I always loved the design aspect of my early position in special test equipment,” Askins says. “Back then I drew everything by hand with a pencil before eventually transitioning to computers.”

His creativity and interest in underwater worlds, along with his scuba diver certification, led him to have a hand in designing early test elements for NASA’s Hubble Space Telescope. At the Neutral Buoyancy Simulator, a former underwater training facility at Marshall, Askins interacted with a crew of astronauts supporting Hubble and designed the flight simulation hardware used for crew training on the Canadarm2 robotic arm that is still a part of the International Space Station today.

Askins has been a part of the NASA family for almost half a century and is thrilled to be a part of the next era of space exploration to the Moon under Artemis.

“To explore is one of the greatest things that we can all do, and with the Artemis Generation the sky’s the limit,” Askins said.

SLS is part of NASA’s backbone for deep space exploration, along with the Orion spacecraft, advanced spacesuits and rovers, the Gateway in orbit around the Moon, and commercial human landing systems. SLS is the only rocket that can send Orion, astronauts, and supplies to the Moon in a single launch.

› Back to Top

NASA’s Tech Demo Streams First Video from Deep Space via Laser

NASA’s Deep Space Optical Communications experiment beamed an ultra-high definition streaming video on Dec. 11 from a record-setting 19 million miles away (or about 80 times the Earth-Moon distance). The milestone is part of a NASA technology demonstration aimed at streaming very high-bandwidth video and other data from deep space – enabling future human missions beyond Earth orbit.

“This accomplishment underscores our commitment to advancing optical communications as a key element to meeting our future data transmission needs,” said NASA Deputy Administrator Pam Melroy. “Increasing our bandwidth is essential to achieving our future exploration and science goals, and we look forward to the continued advancement of this technology and the transformation of how we communicate during future interplanetary missions.”

Members of the DSOC team react to the first high-definition streaming video to be sent via laser from deep space on Dec. 11 at NASA’s Jet Propulsion Laboratory. Sent by the DSOC transceiver aboard the Psyche spacecraft, nearly 19 million miles from Earth, the video features a cat named Taters.
Members of the DSOC (Deep Space Optical Communications) team react to the first high-definition streaming video to be sent via laser from deep space Dec. 11 at NASA’s Jet Propulsion Laboratory. Sent by the DSOC transceiver aboard the Psyche spacecraft nearly 19 million miles from Earth, the video features a cat named Taters.
NASA/JPL-Caltech

The demo transmitted the 15-second test video via a cutting-edge instrument called a flight laser transceiver. The video signal took 101 seconds to reach Earth, sent at the system’s maximum bit rate of 267 Mbps (megabits per second). Capable of sending and receiving near-infrared signals, the instrument beamed an encoded near-infrared laser to the Hale Telescope at Caltech’s Palomar Observatory in San Diego County, California, where it was downloaded. Each frame from the looping video was then sent “live” to NASA’s Jet Propulsion Laboratory in Southern California, where the video was played in real time.

Deep Space Optical Communications, or DSOC, a NASA technology demonstration riding aboard the Psyche space craft, is using advanced laser communication technology to transmit large amounts of data back to earth. DSOC is the latest in a series of optical communication demonstrations funded by the agency’s TDM (Technology Demonstration Missions) program office at NASA’s Marshall Space Flight Center.

“We just demonstrated a highly advanced data transmission capability that will play an instrumental role in NASA’s boldest missions to deep space, and it shows that DSOC is functioning successfully in a relevant environment,” said Tawnya Laughinghouse, manager of the TDM program office at Marshall. “Streaming an ultra-high definition video from millions of miles away in deep space is no small feat.”

The laser communications demo, which launched with NASA’s Psyche mission Oct. 13, is designed to transmit data from deep space at rates 10 to 100 times greater than the state-of-the-art radio frequency systems used by deep space missions today. As Psyche travels to the main asteroid belt between Mars and Jupiter, the technology demonstration will send high-data-rate signals as far out as the Red Planet’s greatest distance from Earth. In doing so, it paves the way for higher-data-rate communications capable of sending complex scientific information, high-definition imagery, and video in support of humanity’s next giant leap: sending humans to Mars.

“One of the goals is to demonstrate the ability to transmit broadband video across millions of miles. Nothing on Psyche generates video data, so we usually send packets of randomly generated test data,” said Bill Klipstein, the tech demo’s project manager at JPL. “But to make this significant event more memorable, we decided to work with designers at JPL to create a fun video, which captures the essence of the demo as part of the Psyche mission.”

Uploaded before launch, the short ultra-high definition video features an orange tabby cat named Taters, the pet of a JPL employee, chasing a laser pointer, with overlayed graphics. The graphics illustrate several features from the tech demo, such as Psyche’s orbital path, Palomar’s telescope dome, and technical information about the laser and its data bit rate. Tater’s heart rate, color, and breed are also on display.

This 15-second clip shows the first ultra-high-definition video sent via laser from deep space, featuring a cat named Taters chasing a laser with test graphics overlayed. (NASA/JPL-Caltech)

“Despite transmitting from millions of miles away, it was able to send the video faster than most broadband internet connections,” said Ryan Rogalin, the project’s receiver electronics lead at JPL. “In fact, after receiving the video at Palomar, it was sent to JPL over the internet, and that connection was slower than the signal coming from deep space. JPL’s DesignLab did an amazing job helping us showcase this technology – everyone loves Taters.”

There’s also a historical link: Beginning in 1928, a small statue of the popular cartoon character Felix the Cat was featured in television test broadcast transmissions. Today, cat videos and memes are some of the most popular content online.

This latest milestone comes after “first light” was achieved on Nov. 14. Since then, the system has demonstrated faster data downlink speeds and increased pointing accuracy during its weekly checkouts. On the night of Dec. 4, the project demonstrated downlink bit rates of 62.5 Mbps, 100 Mbps, and 267 Mbps, which is comparable to broadband internet download speeds. The team was able to download a total of 1.3 terabits of data during that time. As a comparison, NASA’s Magellan mission to Venus downlinked 1.2 terabits during its entire mission from 1990 to 1994.

“When we achieved first light, we were excited, but also cautious. This is a new technology, and we are experimenting with how it works,” said Ken Andrews, project flight operations lead at JPL. “But now, with the help of our Psyche colleagues, we are getting used to working with the system and can lock onto the spacecraft and ground terminals for longer than we could previously. We are learning something new during each checkout.”

The Deep Space Optical Communications demonstration is the latest in a series of optical communication demonstrations funded by the TDM program under NASA’s Space Technology Mission Directorate and supported by NASA’s SCaN (Space Communications and Navigation) program within the agency’s Space Operations Mission Directorate.

The Psyche mission is led by Arizona State University. JPL is responsible for the mission’s overall management, system engineering, integration and test, and mission operations. Psyche is the 14th mission selected as part of NASA’s Discovery Program under the Science Mission Directorate, managed by the agency’s Marshall Space Flight Center. NASA’s Launch Services Program, based at the agency’s Kennedy Space Center, managed the launch service. Maxar Technologies in Palo Alto, California, provided the high-power solar electric propulsion spacecraft chassis.

› Back to Top

NASA Geologist Paves Way for Building on the Moon

By Jessica Barnett

For many at NASA’s Marshall Space Flight Center, a love – be it for space, science, or something else – drew them to the career they’re in today. For geologist Jennifer Edmunson, there were multiple reasons.

Her love for geology dates back to her childhood in Arizona, playing in the mud, fascinated by the green river rocks she would find and how they fit together. As she grew older, her love for astronomy led her to study the regolith and geology of the Moon and Mars in graduate school.

A blonde woman with a black jacket poses in for a headshot in front of a blue background.
Jennifer Edmunson, geologist and MMPACT project manager at NASA’s Marshall Space Flight Center.
NASA

That, in turn, led her to Marshall for her post-doctorate, where she studied how shock processes from meteorite impacts potentially affect scientists’ work to determine the age of rocks using different radioisotope systems. On her first day, she needed help from the center’s IT department, which is how she met Joel Miller, the man she now calls her husband.

“I met him on April Fools’ Day, and he asked me out on Friday the 13th,” Edmunson recalled. “I knew I needed to get a stable job, so I got a job as the junior geologist on the simulant team here at Marshall. That was back in 2009.”

Fourteen years later, they still work at Marshall. He’s now the center’s acting spectrum manager, and she manages the MMPACT (Moon-to-Mars Planetary Autonomous Construction Technology) project. Through MMPACT, Marshall is working with commercial partners and academia to develop and test robotic technology that will one day use lunar soil and 3-D printing technology to build structures on the Moon.

“It’s phenomenal to see the development of the different materials we’ve been working on,” Edmunson said. “We started with this whole array of materials, and now we’re like, ‘OK, what’s the best one for our proof of concept?’”

NASA aims for a proof-of-concept mission to validate the technology and capability by the end of this decade. This mission would involve traveling to the Moon to create a representative element of a landing pad.

MMPACT aims to build lunar infrastructure using the materials readily available on the Moon. This process, known as in-situ resource utilization, allows NASA engineers to use lunar regolith, fine-grained silicate minerals thought to be available in a layer between 10 to 70 feet deep on the lunar surface, to build different structures and infrastructure elements.

A group of people, some wearing sunglasses, all wearing blue shirts stand on a gravel lot outside with a blue sky and green trees behind them.
Marshall geologist and MMPACT project manager Jennifer Edmunson, fourth from right, joined several other scientists for a trip to Stillwater, Montana, earlier this year. Stillwater is known to have rocks like those found on the Moon.
NASA

However, regolith can’t be used like cement here on Earth, as it wouldn’t solidify in the low-pressure environment. So, Edmunson and her team are now looking at microwaves and laser technology to heat the regolith to create solid building materials.

After successfully building a full-scale landing pad on the Moon, MMPACT will likely focus on a vertical structure, like a garage, habitat, or safe haven for astronauts.

“The possibilities are endless,” she said. “There is so much potential for using different materials for different applications. There’s just a wealth of opportunity for anyone who wants to play in the field, really.”

Edmunson hopes to get more lunar regolith first, as NASA is still working with samples from the Apollo missions and simulants based on those samples. She’s also looking forward to Artemis bringing back samples from different parts of the lunar surface because it will provide her team with a wider pool of regolith samples to analyze.

“We want to learn more about different locations on the Moon,” she said. “We have to understand the differences and how that might affect our processes.”

Knowing this will make it easier not just to build landing pads and habitats but to build roadways and the start of a lunar economy, Edmunson said.

A gloved hand holds a handful of white looking synthetic minerals over a orange bucket.
Some minerals are rare on Earth but abundant on the Moon. To study how those minerals could be used for building, scientists rely on simulants, like the synthetic anorthite pictured here.
NASA

“I want there to be sufficient structures there to make things safe for crew, so if we want to build a hotel on the Moon, we could,” she said. “We could have tourists going there, mining districts pulling rare Earth elements from the Moon. We could do that and get a lot of resources that way. I want science to progress, things like building a radio telescope on the far side of the Moon. I want more information on more of the different sites around the Moon, so we can get a be`tter understanding of how the Moon formed and the history of the Moon. We’ve only scratched the surface there.”

There are parts of the Moon that can only be explored in detail by visiting in person, Edmunson explained, and she’s excited to be working at Marshall as that exploration is made possible.

“It’s awesome to be part of this. Honestly, it’s the reason I get out of bed in the morning,” she said. “I was born in ’77, so I missed the Apollo lunar landings. I would love to see humans on the Moon in my lifetime, and on Mars would just be amazing.”

Her advice is simple to anyone considering a career like hers: Just go for it.

“A lot of it comes down to passion and tenacity,” she said. “If you really love what you do and you get to do it every day, you find more enjoyment in your career. I feel like I’m making a difference, and with surface construction at such an infant kind of stage right now, I feel like it’s a contribution that will last for a very long time.”

Barnett, a Media Fusion employee, supports the Marshall Office of Communications.

› Back to Top

Sprightly Stars Illuminate ‘Christmas Tree Cluster’

A new image of NGC 2264, also known as the “Christmas Tree Cluster,” shows the shape of a cosmic tree with the glow of stellar lights. NGC 2264 is, in fact, a cluster of young stars – with ages between about one and five million years old – in our Milky Way about 2,500 light-years away from Earth. The stars in NGC 2264 are both smaller and larger than the Sun, ranging from some with less than a tenth the mass of the Sun to others containing about seven solar masses.

This composite image shows the Christmas Tree Cluster. The blue and white lights (which blink in the animated version of this image) are young stars that give off X-rays detected by NASA’s Chandra X-ray Observatory. Optical data from the National Science Foundation’s WIYN 0.9-meter telescope on Kitt Peak shows gas in the nebula in green, corresponding to the “pine needles” of the tree, and infrared data from the Two Micron All Sky Survey shows foreground and background stars in white. This image has been rotated clockwise by about 160 degrees from the astronomer’s standard of North pointing upward, so that it appears like the top of the tree is toward the top of the image.
This new image of NGC 2264, also known as the “Christmas Tree Cluster,” shows the shape of a cosmic tree with the glow of stellar lights.
X-ray: NASA/CXC/SAO; Optical: T.A. Rector (NRAO/AUI/NSF and NOIRLab/NSF/AURA) and B.A. Wolpa (NOIRLab/NSF/AURA); Infrared: NASA/NSF/IPAC/CalTech/Univ. of Massachusetts; Image Processing: NASA/CXC/SAO/L. Frattare & J.Major

This new composite image enhances the resemblance to a Christmas tree through choices of color and rotation. The blue and white lights (which blink in the animated version of this image) are young stars that give off X-rays detected by NASA’s Chandra X-ray Observatory. Optical data from the National Science Foundation’s WIYN 0.9-meter telescope on Kitt Peak shows gas in the nebula in green, corresponding to the “pine needles” of the tree, and infrared data from the Two Micron All Sky Survey shows foreground and background stars in white. This image has been rotated clockwise by about 160 degrees from the astronomer’s standard of North pointing upward, so that it appears like the top of the tree is toward the top of the image.

Young stars, like those in NGC 2264, are volatile and undergo strong flares in X-rays and other types of variations seen in different types of light. The coordinated, blinking variations shown in this animation, however, are artificial, to emphasize the locations of the stars seen in X-rays and highlight the similarity of this object to a Christmas tree. In reality, the variations of the stars are not synchronized.

This composite image shows the Christmas Tree Cluster. The blue and white lights (which blink in the animated version of this image) are young stars that give off X-rays detected by NASA’s Chandra X-ray Observatory. Optical data from the National Science Foundation’s WIYN 0.9-meter telescope on Kitt Peak shows gas in the nebula in green, corresponding to the “pine needles” of the tree, and infrared data from the Two Micron All Sky Survey shows foreground and background stars in white. This image has been rotated clockwise by about 160 degrees from the astronomer’s standard of North pointing upward, so that it appears like the top of the tree is toward the top of the image.

The variations observed by Chandra and other telescopes are caused by several different processes. Some of these are related to activity involving magnetic fields, including flares like those undergone by the Sun – but much more powerful – and hot spots and dark regions on the surfaces of the stars that go in and out of view as the stars rotate. There can also be changes in the thickness of gas obscuring the stars, and changes in the amount of material still falling onto the stars from disks of surrounding gas.

NASA’s Marshall Space Flight Center manages the Chandra program. The Smithsonian Astrophysical Observatory’s Chandra X-ray Center controls science operations from Cambridge, Massachusetts, and flight operations from Burlington, Massachusetts.

› Back to Top

NASA’s 3D-printed Rotating Detonation Rocket Engine Test a Success

NASA has achieved a new benchmark in developing an innovative propulsion system called the Rotating Detonation Rocket Engine (RDRE). Engineers at NASA’s Marshall Space Flight Center successfully tested a novel, 3D-printed RDRE for 251 seconds (or longer than four minutes), producing more than 5,800 pounds of thrust.

That kind of sustained burn emulates typical requirements for a lander touchdown or a deep-space burn that could set a spacecraft on course from the Moon to Mars, said Marshall combustion devices engineer Thomas Teasley, who leads the RDRE test effort at the center.

A stream of white-hot fire is coming out of Rotaging Detonation Rocket Engine combustor.
Engineers at NASA’s Marshall Space Flight Center conduct a successful, 251-second hot fire test of a full-scale Rotating Detonation Rocket Engine combustor in fall 2023, achieving more than 5,800 pounds of thrust.
NASA

RDRE’s first hot fire test was performed at Marshall in the summer of 2022 in partnership with In Space LLC and Purdue University, both of Lafayette, Indiana. That test produced more than 4,000 pounds of thrust for nearly a minute.

The primary goal of the latest test, Teasley noted, is to better understand how to scale the combustor to different thrust classes, supporting engine systems of all types and maximizing the variety of missions it could serve, from landers to upper stage engines to supersonic retropropulsion, a deceleration technique that could land larger payloads – or even humans – on the surface of Mars.

Test stand video captured at Marshall shows ignition of a full-scale Rotating Detonation Rocket Engine combustor, which was fired for a record 251 seconds and achieved more than 5,800 pounds of thrust. (NASA)

“The RDRE enables a huge leap in design efficiency,” he said. “It demonstrates we are closer to making lightweight propulsion systems that will allow us to send more mass and payload further into deep space, a critical component to NASA’s Moon to Mars vision.”

Engineers at NASA’s Glenn Research Center and Venus Aerospace of Houston, Texas, are working with Marshall to identify how to scale the technology for higher performance.

RDRE is managed and funded by the Game Changing Development Program within NASA’s Space Technology Mission Directorate.

› Back to Top

View the full article

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Similar Topics

    • By NASA
      1 Min Read Oral History with Stephen G. Jurczyk, 1962 – 2023
      NASA Acting Administrator Stephen G. Jurczyk Credits: NASA Steve Jurczyk’s NASA career began in 1988 at Langley Research Center as an engineer in the Electronic Systems Branch. During his time at Langley, he served in other roles, including director of engineering and director of research and technology.  Jurczyk was named as director of Langley in 2014, then in 2015 he left Langley to serve as the associate administrator for the Space Technology Mission Directorate at NASA Headquarters.  He quickly rose to the rank of associate administrator in 2018, and in January 2021 was named the agency’s acting administrator
      Read more about Steve Jurczyk
      NASA Oral History, September 22, 1921 NASA Honors Steve Jurczyk The transcripts available on this site are created from audio-recorded oral history interviews. To preserve the integrity of the audio record, the transcripts are presented with limited revisions and thus reflect the candid conversational style of the oral history format. Brackets and ellipses indicate where the text has been annotated or edited for clarity. Any personal opinions expressed in the interviews should not be considered the official views or opinions of NASA, the NASA History Office, NASA historians, or staff members.
      View the full article
    • By NASA
      1 Min Read Oral History with Mary L. Cleave, 1947 – 2023
      61B-21-008 (26 Nov-1 Dec 1985) —The STS 61-B crew on the flight deck of the earth-orbiting Atlantis. Left to right, back row, are astronauts Jerry L. Ross, Brewster Shaw Jr., Mary L. Cleave, and Bryan D. O'Connor; and payload specialist Rodolfo Neri. Front row, left to right, payload specialist Charles D. Walker and astronaut Sherwood C. Spring. A veteran of two space flights, Dr. Cleave served as a mission specialist on STS-61B and STS-30.  She went on to join NASA’s Goddard Space Flight Center and worked in the Laboratory for Hydrospheric Processes as the Project Manager for SeaWiFS, an ocean color sensor which is monitoring vegetation globally.  Dr. Cleave next served as Deputy Associate Administrator, Office of Earth Science, NASA Headquarters, until her retirement in 2007.
      Read more about Dr. Mary L. Cleave
      NASA Oral History, March 5, 2002 NASA Biography NASA Remembers Trailblazing Astronaut, Scientist Mary Cleave In Memoriam: Mary Cleave The transcripts available on this site are created from audio-recorded oral history interviews. To preserve the integrity of the audio record, the transcripts are presented with limited revisions and thus reflect the candid conversational style of the oral history format. Brackets and ellipses indicate where the text has been annotated or edited for clarity. Any personal opinions expressed in the interviews should not be considered the official views or opinions of NASA, the NASA History Office, NASA historians, or staff members.
      View the full article
    • By NASA
      23 Min Read The Marshall Star for October 30, 2024
      Editor’s Note: Starting Nov. 4, the Office of Communications at NASA’s Marshall Space Flight Center will no longer publish the Marshall Star on nasa.gov. The last public issue will be Oct. 30. To continue reading Marshall news, visit nasa.gov/marshall.
      Marshall Team Members View Progress Toward Future Artemis Flights
      Blake Stewart, lead of the Thrust Vector Control Test Laboratory inside Building 4205 at NASA’s Marshall Space Flight Center, explains how his team tests the mechanisms that steer engine and booster nozzles of NASA’s SLS (Space Launch System) rocket to a group of Marshall team members Oct. 24. The employees were some of the more than 500 team members who viewed progress toward future Artemis flights on bus tours offered by the SLS Program. Building 4205 is also home to the Propulsion Research and Development Laboratory that includes 26 world-class labs and support areas that help the agency’s ambitious goals for space exploration. The Software Integration Lab and the Software Integration Test Facility are among the labs inside supporting SLS that employees visited on the tour. (NASA/Sam Lott)
      A group of Marshall team members gather below the development test article for the universal stage adapter that will be used on the second variant of SLS, called Block 1B. The universal stage adapter is located inside one of the high bays in building 4619. The universal stage adapter will connect the Orion spacecraft to the SLS exploration upper stage. With the exploration upper stage, which will be powered by four RL10-C3 engines, SLS will be capable of lifting more than 105 metric tons (231,000 pounds) from Earth’s surface. This extra mass capability enables SLS to send multiple large payloads to the Moon on the same launch. (NASA/Sam Lott)
      Marshall team members view the Orion Stage Adapters for the Artemis II and Artemis III test flights inside Building 4708. The Orion Stage Adapter, built at Marshall, connects the rocket’s interim cryogenic propulsion stage to the Orion spacecraft. The Orion Stage Adapter for Artemis II is complete and ready to be shipped to Kennedy Space Center. The Oct. 24 tours featured four stops that also included opportunities to see the Artemis III launch vehicle stage adapter, and the development test article for the SLS Block 1B universal stage adapter that will begin flying on Artemis IV. Additionally, programs and offices such as the Human Landing Systems Development Office and the Science and Technology Office hosted exhibits in the lobby of Building 4220, where employees gathered for the tours. (NASA/Jonathan Deal)
      › Back to Top
      Center Commemorates National Disability Employment Awareness Month
      By Serena Whitfield
      In conjunction with National Disability Employment Awareness Month, NASA’s Marshall Space Flight Center held anagencywide virtual event hosted by the Office of Diversity and Equal Opportunity on Oct. 24.
      Marshall team members watched the Webex event in Building 4221.
      From left, Tora Henry, director of the Office of Diversity and Equal Opportunity at Marshall, Chip Dobbs, supply management specialist at Marshall, and Marshall Associate Director Roger Baird pause for a photo following the Oct. 24 virtual event the center hosted as part of National Disability Awareness Month. NASA/Serena Whitfield In alignment with the month’s national theme, “Access to Good Jobs for All,” the program highlighted the perspectives of people with disabilities in the workplace as they navigate the work lifecycle – from applying, to onboarding, career growth and advancement, and day-to-day engagements.
      The event began with Marshall Associate Director Roger Baird welcoming NASA team members.
      “NASA is dedicated to inclusive hiring practices and providing pathways for good jobs and career success for all employees, including workers with disabilities,” Baird said. “Some ways we do this is through targeted recruitment of qualified individuals with disabilities through accessible vacancy announcements, outreach to students with disabilities, and community partnerships.”
      NASA also utilizes Schedule A Authority, a non-competitive Direct Hiring Authority to hire people with disabilities without competition.
      Baird introduced event moderator Joyce Meier, logistics manager at Marshall, who welcomed panelists Casey Denham, Kathy Clark, Paul Spann, and Paul Sullivan, all NASA team members. The panelists from the disability community discussed their work lifecycles, lessons learned in the workplace, and shared a demonstration on colorblindness and its impact.
      Denham discussed some of the best practices for onboarding employees with neurodiversity, a term used to describe people whose brains develop or work differently than the typical brain.
      Marshall team members watch the agencywide virtual event commemorating National Disability Employment Awareness Month. NASA/Serena Whitfield Clark talked about what can be done to continue raising awareness and advocating for disability rights. She said NASA empowers its workforce with knowledge so they can be informed allies to team members with disabilities and foster a safe and inclusive working environment. 
      Spann gave insight into practical steps employers can take to accommodate candidates with deafness, and Sullivan spoke about some key considerations NASA managers should keep in mind to make the job application process more accessible to candidates with low vision.
      Guest speaker Chip Dobbs, supply management specialist at Marshall, talked about his personal experiences with being deaf. Dobbs has worked at NASA for 29 years and said he has never let his disability hold him back, but instead uses it as a gateway to inspire and connect with others.
      The event ended with closing remarks from Tora Henry, director of the Office of Diversity and Equal Opportunity at Marshall. The virtual event placed importance on planning for NASA’s future by promoting equality and addressing the barriers people with disabilities face in the workplace. 
      “As we celebrate National Disability Employment Awareness Month, keep in mind that NASA’s mission of exploring the unknown and pushing the boundaries of human potential requires the contributions of every mind, skill set, and perspective,” Baird said. “Our commitment to inclusivity ensures that no talent goes untapped, and no idea goes unheard because together, we’re not just reaching for the stars, we’re showing the world what’s possible when everyone has a seat at the table.”
      A recording of the event is available here. Learn more about NASA’s agencywide resources for individuals with disabilities as well as the agency’s Disability Employment Program.
      Whitfield is an intern supporting the Marshall Office of Communications.
      › Back to Top
      Farley Davis Receives NASA’s Blue Marble Award
      By Wayne Smith
      Farley Davis, manager of the Environmental Engineering and Occupational Health Office at NASA’s Marshall Space Flight Center, has received a 2024 Blue Marble Award from the agency.
      NASA’s Office of Strategic Infrastructure, Environmental Management Division presented the 2024 Blue Marble Awards on Oct. 8 at the agency’s Johnson Space Center. The Blue Marble Awards Program recognizes teams and individuals demonstrating exceptional environmental leadership in support of NASA’s missions and goals. In 2024, the awards included five categories: the Director’s Award, Environmental Quality, Excellence in Energy and Water Management, Excellence in Resilience or Climate Change Adaptation, and new this year: Excellence in Site Remediation. 
      Farley Davis, center, manager of the Environmental Engineering and Occupational Health Office at NASA’s Marshall Space Flight Center, with his NASA Blue Marble Award. Joining him, from left, are Joel Carney, assistant administrator, Strategic Infrastructure; Denise Thaller, deputy assistant administrator, Strategic Infrastructure; Charlotte Betrand, director, Environmental Management; and June Malone, director, Office of Center Operations at Marshall. NASA Davis was recognized for “exceptional leadership and outstanding commitment above and beyond individual job responsibilities, to assist Marshall and the agency in enabling environmentally sound mission success.”
      “The award was unexpected, and I am very thankful to receive the Environmental Management Director’s Blue Marble Award,” said Davis, who has been at Marshall for 33 years. “Collectively, Marshall’s environmental engineering team has made this award possible with their diligent support for many years keeping the center’s environmental compliance at the forefront. I will cherish the award for the rest of my life.”
      June Malone, director of the Office of Center Operations at Marshall, credited Davis for his environmental leadership and mentoring team members.
      “Farley’s attitude of professionalism and personal responsibility for the development and implementation of well-grounded environmental programs has increased Marshall’s sustainability and prevented pollution,” Malone said. “His tireless leadership has resulted in compliance with federal, state, and local environmental laws and regulations, and his creative solution-oriented approaches to environmental stewardship have restored contaminated areas.”
      Charlotte Bertrand, director of the Environmental Management Division at NASA Headquarters, said it was an honor to select Davis for the 2024 Blue Marble Director’s Award.
      “Farley’s incredibly distinguished career with NASA reflects the award’s intention to recognize exceptional leadership by an individual in assisting the agency in enabling environmentally sound mission success,” Bertrand said.
      Please see the awards program for additional information.
      Smith, a Media Fusion employee and the Marshall Star editor, supports the Marshall Office of Communications.
      › Back to Top
      Take 5 with Brooke Rhodes
      By Wayne Smith
      When human exploration of Mars becomes a reality and more than just the stuff of science fiction, Brooke Rhodes will be eager to investigate what astronauts discover on the Red Planet.
      From listening to her talk about her work as an engineer at NASA’s Marshall Space Flight Center, it’s easy to grasp her excitement about the future of human space exploration and NASA’s Moon to Mars architecture.
      Brooke Rhodes is currently on detail as the branch chief of the Avionics and Software Ground Systems Test Branch at NASA’s Marshall Space Flight Center. Working in the Instrument Development, Integration and Test Branch for the past seven years, she’s been responsible for the integration and testing of International Space Station payloads. NASA “I can’t wait for the Mars rovers to have some human company,” said Rhodes, who recently began a detail as the chief of Marshall’s Avionics and Software Ground Systems Test Branch. “I need to know if we can grow Mark Watney (of The Martian movie fame) quantities of potatoes up there. Everything we do to prepare to return humans to the Moon and establish a presence in deep space is building toward putting boots on Mars. It’s an honor and a privilege to be even a small part of it.”
      Rhodes also appreciates the responsibility she takes on in any form in NASA’s exploration missions to benefit humanity. After all, she has worked on hardware for the International Space Station and has had supporting roles for the Mars Ascent Vehicle and Artemis missions.
      “We at Marshall hold an incredible amount of responsibility: responsibility for the welfare of the crew on the space station, responsibility for the welfare of the crew on the Artemis missions, and even the welfare of humanity through the responsibility we have for science on the station and elsewhere,” said Rhodes, who is from Petal, Mississippi, and has worked at Marshall for seven years. “When your missions are as critical as ours, it’s nearly impossible to not be motivated.”
      Now, on to Mars.
      Question: What is your position and what are your primary responsibilities?
      Rhodes: I recently began the detail as the branch chief of the Avionics and Software Ground Systems Test Branch, ES53. Our branch is primarily responsible for the development of hardware-in-the-loop and software development facilities for the Artemis and MAV (Mars Ascent Vehicle) missions. My home organization is ES61, the Instrument Development, Integration and Test Branch, where I’ve been responsible for the integration and testing of International Space Station payloads for the past several years.
      Rhodes with a box of sample cartridge assemblies (SCAs) headed for the International Space Station. Photo courtesy of Brooke Rhodes Question: What has been the proudest moment of your career and why?
      Rhodes: One really cool moment that sticks out was the first time I saw hardware I had been responsible for being used in space. I spent several years as the integration and test lead of the Materials Science Research Rack (MSRR) Sample Cartridge Assemblies (SCAs) and we shipped our first batch of SCAs to the space station in 2018. That shipment was the culmination of years of intense effort and teamwork, so to see them onboard and about to enable materials science was an incredible feeling. There was a moment in particular that felt a bit surreal: prior to our SCA shipment the crew discovered they were missing a couple of fasteners from the onboard furnace, so we had those shipped to us from Europe and I packed them into the SCA flight foam before they shipped to the launch site. The next time I saw those fasteners they were being held up to a camera by one of the crew members, asking if those were the ones they needed for the furnace. Putting fasteners into foam didn’t take much effort, but what it represented was much bigger: being a small part of an international effort to enable science off the Earth, for the Earth, was an incredible moment I’ll carry with me for the rest of my career.
      Question: Who or what inspired you to pursue an education/career that led you to NASA and Marshall?
      Rhodes: I had a couple of lightbulb moments my junior year of high school that eventually set me on my current career path. I very specifically recall sitting in my physics I class and learning how to calculate the planetary motion of Jupiter and thinking I had never learned about anything cooler. Even then, though, NASA didn’t really enter my thoughts. Growing up, working for NASA didn’t even occur to me as something people could actually do – being a “rocket scientist” was just an abstract concept people threw around to indicate something was difficult.
      That changed later when the same teacher who had been teaching us planetary motion took us on a field trip to Kennedy Space Center. The tour guide showing us around the Vehicle Assembly Building was a young employee who said he had majored in aerospace engineering at the University of Tennessee. That was the second lightbulb moment: here was a young person from the Southeast, just like me, who had done something tangible in order to work for NASA. That seemed easy enough, so I decided to major in aerospace engineering at Mississippi State and one day work for NASA. That turned out to not be easy, but definitely doable.
      While at Mississippi State, I was able to complete three NASA internships, one at the Jet Propulsion Laboratory and two at Marshall. Eventually, I was hired on full-time at NASA’s Johnson Space Center, but wound up making my way back to Marshall, where I’ve been ever since. There’s no place on the planet better for enthusiasts of both aerospace engineering and football.
      NASA astronaut Ricky Arnold, a space station crew member for Expedition 56, holds up a fastener for the Materials Science Laboratory, which Rhodes packed for shipment to the orbiting laboratory in 2018. “Putting fasteners into foam didn’t take much effort, but what it represented was much bigger: being a small part of an international effort to enable science off the Earth, for the Earth, was an incredible moment I’ll carry with me for the rest of my career.” Photo courtesy of Brooke Rhodes Interestingly, my physics I teacher’s name was Mrs. Rhodes, and I used to joke with my classmates that I wanted to be Mrs. Rhodes when I grew up. I didn’t actually mean that literally, but then I married Matthew Rhodes and did, indeed, become Mrs. Rhodes.
      Question: What advice do you have for employees early in their NASA career or those in new leadership roles?
      Rhodes: Scary is good. If you aren’t stepping out of your comfort zone you probably aren’t growing, and if you’re experiencing imposter syndrome, you’re probably the right person for the job.
      Question: What do you enjoy doing with your time while away from work?
      Rhodes: While away from work I tend to invest too much of my mental wellbeing into football. To recover from the stresses of work and my football teams being terrible, I like to explore National Parks. The U.S. has some of the most diverse scenery anywhere in the world, and I love getting outside and exploring it.
      Smith, a Media Fusion employee and the Marshall Star editor, supports the Marshall Office of Communications.
      › Back to Top
      Planets Beware: NASA Unburies Danger Zones of Star Cluster
      Most stars form in collections, called clusters or associations, that include very massive stars. These giant stars send out large amounts of high-energy radiation, which can disrupt relatively fragile disks of dust and gas that are in the process of coalescing to form new planets.
      A team of astronomers used NASA’s Chandra X-ray Observatory, in combination with ultraviolet, optical, and infrared data, to show where some of the most treacherous places in a star cluster may be, where planets’ chances to form are diminished.
      In this new composite image, Chandra data (purple) shows the diffuse X-ray emission and young stars in Cygnus OB2, and infrared data from NASA’s now-retired Spitzer Space Telescope (red, green, blue, and cyan) reveals young stars and the cooler dust and gas throughout the region.X-ray: NASA/CXC/SAO/J. Drake et al, IR: NASA/JPL-Caltech/Spitzer; Image Processing: NASA/CXC/SAO/N. Wolk The target of the observations was Cygnus OB2, which is the nearest large cluster of stars to our Sun – at a distance of about 4,600 light-years. The cluster contains hundreds of massive stars as well as thousands of lower-mass stars. The team used long Chandra observations pointing at different regions of Cygnus OB2, and the resulting set of images were then stitched together into one large image.
      The deep Chandra observations mapped out the diffuse X-ray glow in between the stars, and they also provided an inventory of the young stars in the cluster. This inventory was combined with others using optical and infrared data to create the best census of young stars in the cluster.
      In a new composite image, the Chandra data (purple) shows the diffuse X-ray emission and young stars in Cygnus OB2, and infrared data from NASA’s now-retired Spitzer Space Telescope (red, green, blue, and cyan) reveals young stars and the cooler dust and gas throughout the region.
      In these crowded stellar environments, copious amounts of high-energy radiation produced by stars and planets are present. Together, X-rays and intense ultraviolet light can have a devastating impact on planetary disks and systems in the process of forming.
      Planet-forming disks around stars naturally fade away over time. Some of the disk falls onto the star and some is heated up by X-ray and ultraviolet radiation from the star and evaporates in a wind. The latter process, known as “photoevaporation,” usually takes between five and 10 million years with average-sized stars before the disk disappears. If massive stars, which produce the most X-ray and ultraviolet radiation, are nearby, this process can be accelerated.
      The researchers using this data found clear evidence that planet-forming disks around stars indeed disappear much faster when they are close to massive stars producing a lot of high-energy radiation. The disks also disappear more quickly in regions where the stars are more closely packed together.
      For regions of Cygnus OB2 with less high-energy radiation and lower numbers of stars, the fraction of young stars with disks is about 40%. For regions with more high-energy radiation and higher numbers of stars, the fraction is about 18%. The strongest effect – meaning the worst place to be for a would-be planetary system – is within about 1.6 light-years of the most massive stars in the cluster.
      A separate study by the same team examined the properties of the diffuse X-ray emission in the cluster. They found that the higher-energy diffuse emission comes from areas where winds of gas blowing away from massive stars have collided with each other. This causes the gas to become hotter and produce X-rays. The less energetic emission probably comes from gas in the cluster colliding with gas surrounding the cluster.
      Two separate papers describing the Chandra data of Cygnus OB2 are available. The paper about the planetary danger zones, led by Mario Giuseppe Guarcello (National Institute for Astrophysics in Palermo, Italy), appeared in the November 2023 issue of the Astrophysical Journal Supplement Series, and is available here. The paper about the diffuse emission, led by Juan Facundo Albacete-Colombo (University of Rio Negro in Argentina) was published in the same issue of Astrophysical Journal Supplement, and is available here.
      NASA’s Marshall Space Flight Center manages the Chandra program. The Smithsonian Astrophysical Observatory’s Chandra X-ray Center controls science operations from Cambridge, Massachusetts, and flight operations from Burlington, Massachusetts.
      NASA’s Jet Propulsion Laboratory (JPL) managed the Spitzer Space Telescope mission for the agency’s Science Mission Directorate until the mission was retired in January 2020. Science operations were conducted at the Spitzer Science Center at Caltech. Spacecraft operations were based at Lockheed Martin Space in Littleton, Colorado. Data are archived at the Infrared Science Archive operated by IPAC at Caltech. Caltech manages JPL for NASA.
      › Back to Top
      NASA Begins New Deployable Solar Array Tech Demo on Pathfinder Spacecraft
      NASA recently evaluated initial flight data and imagery from Pathfinder Technology Demonstrator-4 (PTD-4), confirming proper checkout of the spacecraft’s systems including its on-board electronics as well as the payload’s support systems such as the small onboard camera. Shown is a test image of Earth taken by the payload camera, shortly after PTD-4 reached orbit. This camera will continue photographing the technology demonstration during the mission. 
      A test image of Earth taken by NASA’s Pathfinder Technology Demonstrator-4’s onboard camera. The camera will capture images of the Lightweight Integrated Solar Array and anTenna upon deployment.NASA Payload operations are now underway for the primary objective of the PTD-4 mission – the demonstration of a new power and communications technology for future spacecraft. The payload, a deployable solar array with an integrated antenna called the Lightweight Integrated Solar Array and anTenna, or LISA-T, has initiated deployment of its central boom structure. The boom supports four solar power and communication arrays, also called petals. Releasing the central boom pushes the still-stowed petals nearly three feet away from the spacecraft bus. The mission team currently is working through an initial challenge to get LISA-T’s central boom to fully extend before unfolding the petals and beginning its power generation and communication operations.
      Small spacecraft on deep space missions require more electrical power than what is currently offered by existing technology. The four-petal solar array of LISA-T is a thin-film solar array that offers lower mass, lower stowed volume, and three times more power per mass and volume allocation than current solar arrays. The in-orbit technology demonstration includes deployment, operation, and environmental survivability of the thin-film solar array.  
      “The LISA-T experiment is an opportunity for NASA and the small spacecraft community to advance the packaging, deployment, and operation of thin-film, fully flexible solar and antenna arrays in space. The thin-film arrays will vastly improve power generation and communication capabilities throughout many different mission applications,” said John Carr, deputy center chief technologist at NASA’s Marshall Space Flight Center. “These capabilities are critical for achieving higher value science alongside the exploration of deep space with small spacecraft.”
      NASA teams are testing a key technology demonstration known as LISA-T, short for the Lightweight Integrated Solar Array and anTenna. It’s a super compact, stowable, thin-film solar array that when fully deployed in space, offers both a power generation and communication capability for small spacecraft. LISA-T’s orbital flight test is part of the Pathfinder Technology Demonstrator series of missions. (NASA) The Pathfinder Technology Demonstration series of missions leverages a commercial platform which serves to test innovative technologies to increase the capability of small spacecraft. Deploying LISA-T’s thin solar array in the harsh environment of space presents inherent challenges such as deploying large highly flexible non-metallic structures with high area to mass ratios. Performing experiments such as LISA-T on a smaller, lower-cost spacecraft allows NASA the opportunity to take manageable risk with high probability of great return. The LISA-T experiment aims to enable future deep space missions with the ability to acquire and communicate data through improved power generation and communication capabilities on the same integrated array.
      The PTD-4 small spacecraft is hosting the in-orbit technology demonstration called LISA-T. The PTD-4 spacecraft deployed into low Earth orbit from SpaceX’s Transporter-11 rocket, which launched from Space Launch Complex 4E at Vandenberg Space Force Base in California on Aug. 16. Marshall designed and built the LISA-T technology as well as LISA-T’s supporting avionics system. NASA’s Small Spacecraft Technology program, based at NASA’s Ames Research Center and led by the agency’s Space Technology Mission Directorate, funds and manages the PTD-4 mission as well as the overall Pathfinder Technology Demonstration mission series. Terran Orbital Corporation of Irvine, California, developed and built the PTD-4 spacecraft bus, named Triumph.
      › Back to Top
      NASA SPoRT’s Streamflow-AI Helps with Flood Preparedness in Texas
      By Paola Pinto
      For more than two decades, the NASA Short-term Prediction Research and Transition Center (SPoRT) within the NASA Earth Science Office at Marshall Space Flight Center has been at the forefront of developing and maintaining decision-making tools for meteorological predictions.
      This image represents the first instance of predictions getting into moderate flooding in Pine Island Bayou. At 14 feet (start of the moderate flooding category), Cooks Lake Road becomes unsafe for most vehicles. NASA Jonathan Brazzell, a service hydrologist at the National Weather Service (NWS) office in Lake Charles, Louisiana, highlighted a recent example of SPoRT’s impact while he was doing forecasting for Texas streams.
      Brazzell, who manages the South Texas and South Louisiana regions, emphasized the practical applications and significant impacts of the Machine Learning model developed by NASA SPoRT to predict future stream heights, known as the SPoRT Streamflow A.I. During a heavy rainfall event this past spring, he noted the challenge of forecasting flooding beyond 48 hours. SPoRT has worked closely with the NWS offices to develop a machine learning tool capable of predicting river flooding beyond two days and powered by the SPoRT Land Information System.
      “Previously, we relied on actual gauge information and risk assessments based on predicted precipitation,” Brazzell said. “Now, with this machine learning, we have a modeling tool that provides a much-needed predictive capability.”
      During forecasted periods of heavy precipitation from early to mid-May, Brazzell monitored potential flooding events and their magnitude using NASA SPoRT’s Streamflow-AI, which provided essential support to the Pine Island Bayou and Big Cow Creek communities in south Texas.
      Streamflow A.I. enabled local authorities to provide advance notice, allowing residents to prepare adequately for the event. Due to the benefit of three to seven-day flood stage predictions, the accurate forecasts helped county officials decide on road closures and evacuation advisories; community officials advised residents to gather a seven-day supply of necessities and relocate their vehicles, minimizing disruption and potential damage.
      Brazzell highlighted specific instances where the machine learning outputs were critical. For example, during the event that peaked around May 6, Streamflow A.I. accurately predicted the rise in stream height, allowing for timely road closures and advisories. These predictions were shared with county officials and were pivotal in their decision-making process.
      This image shows the water levels after rainfall and predicts a moderate stream height in Pine Island Bayou. NASA Brazzell shared that integrating SPoRT’s machine learning capabilities with their existing tools, such as flood risk mapping, proved invaluable. Although the machine learning outputs had been operational for almost two years after Hurricane Harvey, this season has provided their first significant applications in real-time scenarios due to persistent conditions of below-normal precipitation and ongoing drought.
      He also mentioned the broader applications of Streamflow A.I., including its potential use in other sites beyond those currently being monitored. He expressed interest in expanding the use of machine learning stream height outputs to additional locations, citing the successful application in current sites as a compelling reason for broader implementation.
      NASA SPoRT users’ experiences emphasize how crucial advanced prediction technologies are in hydrometeorology and emergency management operations. Based on Brazzell’s example, it is reasonable to say that the product’s ability to provide accurate, timely data greatly improves decision-making processes and ensures public safety. The partnership between NASA SPoRT and operational agencies like NOAA/NWS and county response teams demonstrates how research and operations can be seamlessly integrated into everyday practices, making a tangible difference in communities vulnerable to high-impact events.
      As the Streamflow A.I. product continues to evolve and expand its applications, it holds significant promise for improving disaster preparedness and response efforts across various regions that experience different types of flooding events.
      The Streamflow-AI product provides a 7-day river height or stage forecasts at select gauges across the south/eastern U.S. You can find the SPoRT training item on Streamflow-AI here.
      Pinto is a research associate at the University of Alabama in Huntsville, specializing in communications and user engagement for NASA SPoRT.
      › Back to Top
      Agency Awards Custodial, Refuse Collection Contract
      NASA has selected All Native Synergies Company of Winnebego, Nebraska, to provide custodial and refuse collection services at the agency’s Marshall Space Flight Center.
      The Custodial and Refuse Collection Services III contract is a firm-fixed-price contract with an indefinite-delivery/indefinite-quantity provision. Its maximum potential value is approximately $33.5 million. The performance period began Oct. 23 and will extend four and a half years, with a one-year base period, four one-year options, and a six-month extension.
      This critical service contract provides custodial and refuse collection services for all Marshall facilities. Work under the contract includes floor maintenance, including elevators; trash removal; cleaning drinking fountains and restrooms; sweeping, mopping, and cleaning building entrances and stairways.
      › Back to Top
      View the full article
    • By NASA
      X-ray: NASA/CXC/SAO/J. Drake et al, IR: NASA/JPL-Caltech/Spitzer; Image Processing: NASA/CXC/SAO/N. Wolk Most stars form in collections, called clusters or associations, that include very massive stars. These giant stars send out large amounts of high-energy radiation, which can disrupt relatively fragile disks of dust and gas that are in the process of coalescing to form new planets.
      A team of astronomers used NASA’s Chandra X-ray Observatory, in combination with ultraviolet, optical, and infrared data, to show where some of the most treacherous places in a star cluster may be, where planets’ chances to form are diminished.
      The target of the observations was Cygnus OB2, which is the nearest large cluster of stars to our Sun — at a distance of about 4,600 light-years. The cluster contains hundreds of massive stars as well as thousands of lower-mass stars. The team used long Chandra observations pointing at different regions of Cygnus OB2, and the resulting set of images were then stitched together into one large image.
      The deep Chandra observations mapped out the diffuse X-ray glow in between the stars, and they also provided an inventory of the young stars in the cluster. This inventory was combined with others using optical and infrared data to create the best census of young stars in the cluster.
      In this new composite image, the Chandra data (purple) shows the diffuse X-ray emission and young stars in Cygnus OB2, and infrared data from NASA’s now-retired Spitzer Space Telescope (red, green, blue, and cyan) reveals young stars and the cooler dust and gas throughout the region.
      In these crowded stellar environments, copious amounts of high-energy radiation produced by stars and planets are present. Together, X-rays and intense ultraviolet light can have a devastating impact on planetary disks and systems in the process of forming.
      Planet-forming disks around stars naturally fade away over time. Some of the disk falls onto the star and some is heated up by X-ray and ultraviolet radiation from the star and evaporates in a wind. The latter process, known as “photoevaporation,” usually takes between 5 and 10 million years with average-sized stars before the disk disappears. If massive stars, which produce the most X-ray and ultraviolet radiation, are nearby, this process can be accelerated.
      The researchers using this data found clear evidence that planet-forming disks around stars indeed disappear much faster when they are close to massive stars producing a lot of high-energy radiation. The disks also disappear more quickly in regions where the stars are more closely packed together.
      For regions of Cygnus OB2 with less high-energy radiation and lower numbers of stars, the fraction of young stars with disks is about 40%. For regions with more high-energy radiation and higher numbers of stars, the fraction is about 18%. The strongest effect — meaning the worst place to be for a would-be planetary system — is within about 1.6 light-years of the most massive stars in the cluster.
      A separate study by the same team examined the properties of the diffuse X-ray emission in the cluster. They found that the higher-energy diffuse emission comes from areas where winds of gas blowing away from massive stars have collided with each other. This causes the gas to become hotter and produce X-rays. The less energetic emission probably comes from gas in the cluster colliding with gas surrounding the cluster.
      Two separate papers describing the Chandra data of Cygnus OB2 are available. The paper about the planetary danger zones, led by Mario Giuseppe Guarcello (National Institute for Astrophysics in Palermo, Italy), appeared in the November 2023 issue of the Astrophysical Journal Supplement Series, and is available here. The paper about the diffuse emission, led by Juan Facundo Albacete-Colombo (University of Rio Negro in Argentina) was published in the same issue of Astrophysical Journal Supplement, and is available here.
      NASA’s Marshall Space Flight Center in Huntsville, Alabama, manages the Chandra program. The Smithsonian Astrophysical Observatory’s Chandra X-ray Center controls science operations from Cambridge, Massachusetts, and flight operations from Burlington, Massachusetts.
      JPL managed the Spitzer Space Telescope mission for NASA’s Science Mission Directorate in Washington until the mission was retired in January 2020. Science operations were conducted at the Spitzer Science Center at Caltech. Spacecraft operations were based at Lockheed Martin Space in Littleton, Colorado. Data are archived at the Infrared Science Archive operated by IPAC at Caltech. Caltech manages JPL for NASA.
      Read more from NASA’s Chandra X-ray Observatory.
      Learn more about the Chandra X-ray Observatory and its mission here:
      https://www.nasa.gov/chandra
      https://chandra.si.edu
      Visual Description
      This release features a composite image of the Cygnus OB2 star cluster, which resembles a night sky blanketed in orange, purple, and grey clouds.
      The center of the square image is dominated by purple haze. This haze represents diffuse X-ray emissions, and young stars, detected by the Chandra X-ray observatory. Surrounding the purple haze is a mottled, streaky, brick orange cloud. Another cloud resembling a tendril of grey smoke stretches from our lower left to the center of the image. These clouds represent relatively cool dust and gas observed by the Spitzer Space Telescope.
      Although the interwoven clouds cover most of the image, the thousands of stars within the cluster shine through. The lower-mass stars present as tiny specks of light. The massive stars gleam, some with long refraction spikes.
      News Media Contact
      Megan Watzke
      Chandra X-ray Center
      Cambridge, Mass.
      617-496-7998
      mwatzke@cfa.harvard.edu
      Lane Figueroa
      Marshall Space Flight Center, Huntsville, Alabama
      256-544-0034
      lane.e.figueroa@nasa.gov
      View the full article
    • By NASA
      19 Min Read The Marshall Star for October 23, 2024
      Editor’s Note: Starting Nov. 4, the Office of Communications at NASA’s Marshall Space Flight Center will no longer publish the Marshall Star on nasa.gov. The last public issue will be Oct. 30. To continue reading Marshall news, visit nasa.gov/marshall.
      Habitation Systems Business Unit Spotlight: Living and Working in Space
      For centuries, humans have dreamed of the ability to live safely on the Moon and Mars. At NASA’s Marshall Space Flight Center, team members supporting habitation systems development bring that dream closer to reality by envisioning and shaping humanity’s future in deep space and on the surface of other worlds.
      Marshall’s Habitation Systems business unit – the center’s featured organization for October – develops the next generation of habitation systems to make living and working in space and on planetary bodies possible. These efforts are carried out through the Habitation Systems Development Office, in which the team works across programmatic and engineering organizations to support formulation activities for planetary surface habitation (Moon and Mars), transit habitats for deep space exploration, and the Gateway program. In addition, the Marshall team collaborates with commercial partners on future habitation concept development and risk reduction activities through NextSTEP Appendix A: Habitation Systems and Reimbursable Space Act Agreements.   
      Seth BellNASA Seth Bell is currently the technical monitor for NASA’s commercial partner Sierra Space. Sierra has executed both full scale and subscale inflatable habitat burst tests at Marshall’s East Test Area. Bell has worked as a subsystem manager for the Mars Ascent Vehicle and as a system’s engineer and Engineering Directorate integrator.
      “I am excited to eventually see softgood inflatables in low Earth orbit,” Bell said. “Seeing the success of the many teams working in this office is exciting, especially after developing so many lasting relationships and putting so much time and energy into this work.”
      Yancy YoungNASA Since joining NASA in 2008, Yancy Young has served in multiple positions, including manager of several International Space Station research projects and Launch Package manager for Gateway Co-manifested Payloads. Currently, Young is the technical monitor for Boeing efforts under NASA’s NextSTEP Appendix A Broad Agency Announcement (BAA) for the development of deep space habitation concepts.
      “I love being a part of laying the foundation for long term deep space exploration,” Young said.
      Boeing’s current focus is a Design Analysis Cycle investigating the benefits and challenges of using composite materials in a pressurized Lunar Surface Habitat.
      Brooke ThorntonNASA In her 25-plus years at NASA, Brooke Thornton has worked on everything from ionized space radiation analysis to Earth observing satellites. Currently, Thornton is the industry engagement manager for the Habitation Systems Development Office and Strategy and Architecture Office. Thornton manages NextSTEP-2 Appendix A-Habitation Systems and Appendix R-Logistics and Mobility Systems BAA. In addition, Thornton fosters collaboration between industry and NASA for the Moon to Mars mission.
      “I am excited about working with industry to develop the elements and concepts of operations for humans to live on the Moon and beyond,” Thornton said.
      › Back to Top
      Team Members Enjoy Marshall Exchange BBQ Fest
      Joseph Pelfrey, center, director of NASA’s Marshall Space Flight Center, talks with team members during the BBQ Fest hosted by the Marshall Exchange on Oct. 21. The event was held on the walking trail behind the Wellness Center and was open to team members, their family members, and retirees. “My thanks to those who came out to this year’s BBQ – and especially to those who helped make it happen,” Pelfrey said. “I could not have asked for better weather or a better group of people to spend the afternoon with. It was great to see everyone’s families join us on site to celebrate the hard work our teams have put in this year.” (NASA/Charles Beason)
      Children play on an inflatable at the BBQ Fest with a space shuttle inflatable in the background. (NASA/Charles Beason)
      Marshall team members participate in Bingo during the BBQ hosted by the Marshall Exchange. (NASA/Charles Beason)
      › Back to Top
      Tony Clark Named Deputy Director of Marshall’s Engineering Directorate
      Tony Clark has been named to the Senior Executive Service position of deputy director of the Engineering Directorate at NASA’s Marshall Space Flight Center, effective immediately. In this role, Clark will be help lead the center’s largest organization, comprised of more than 2,500 civil service and contractor personnel, who design, test, evaluate, and operate flight hardware and software associated with Marshall-developed space transportation and spacecraft systems, science instruments, and payloads.
      Tony Clark has been named to the Senior Executive Service position of deputy director of the Engineering Directorate at NASA’s Marshall Space Flight Center.NASA Clark previously served as deputy director of the Space Systems Department at Marshall from 2021-2024 and served as acting director in 2024. In this role, Clark led the design, development, assembly, integration, testing, and delivery of flight, ground, prototype, and development products for NASA human spaceflight programs, science investigations, and exploration initiatives. He aided in the oversight of an annual budget of approximately $70 million and helped manage a diverse, highly technical workforce of approximately 660 civil service employees and contractors.
      Over his three decades of service to NASA, Clark has held numerous key leadership roles, bringing a wealth of technical and supervisory experience to Marshall’s broad range of engineering endeavors. He served as manager of the vehicle equipment area in Johnson Space Center’s Vehicle Systems Integration Office of the Gateway Program from 2018-2021. He was also manager of the Engineering Resource Management Office in Marshall’s Engineering Directorate from 2014-2018, tasked with leading and coordinating resources among eight engineering departments, laboratories and offices staffed by more than 2,300 civil service and contract personnel.
      He was acting deputy manager of the Engineering Directorate’s Spacecraft and Vehicle Systems Department from February 2014 to October 2014. Prior to that, Clark was chief of the directorate’s Electrical Integration and Fabrication Division from 2007-2014, and chief of the Electromagnetic Environmental Effects and Electrical Integration Branch from 2004-2007. He joined Marshall in September 1991 as an electromagnetic environmental effects engineer.
      Clark earned a bachelor’s degree in electrical engineering from Tennessee Technological University in Cookeville in 1989 and a master’s degree in electrical engineering from The Ohio State University in Columbus in 1991.
      Among his many professional awards and honors, Clark received the NASA Exceptional Achievement Medal in 2010 for his work on the Ares IX, the launch vehicle which informed development of NASA’s new rocket, the Space Launch System. He also received a Silver Snoopy award in 1999, reflecting outstanding service and the highest dedication to safe human spaceflight.
      Clark was a founding member in 2004 of the Huntsville Chapter of the Institute of Electrical and Electronic Engineers’ Electromagnetic Compatibility Society.
      › Back to Top
      I Am Artemis: Sarah Ryan
      A passion for puzzles, problem-solving, and propulsion led Sarah Ryan – a native of Columbus, Ohio – to her current position as Raptor engine lead for NASA’s HLS (Human Landing System) insight team at NASA’s Marshall Space Flight Center. The SpaceX Raptor rocket engine powers the company’s Starship and Super Heavy rocket. SpaceX will land astronauts on the Moon for NASA’s Artemis III and Artemis IV missions using the Starship HLS. NASA’s Artemis campaign aims to land the first woman, first person of color, and first international partner astronaut on the Moon.
      NASA’s Sarah Ryan is the Raptor engine lead for NASA’s HLS (Human Landing System) Program at NASA’s Marshall Space Flight Center. “With Artemis, we’re moving beyond what NASA did with Apollo and that’s really inspiring, especially to our younger workforce. We’re trying to push farther and it’s really going to drive a lot of technology development on the way there,” Ryan said. “This is a dream come true to be working on Artemis and solving problems so humanity can get back to the Moon then on to Mars.”NASA/Ken Hall “My team looks at how the components of the Raptor engine work together. Then, we evaluate the performance of the full system to make sure it will accomplish the NASA HLS and Artemis missions,” Ryan said. “I get to see lots of pieces and parts of the puzzle and then look at the system as a whole to make sure it meets NASA’s needs.”
      While earning a bachelor’s degree from Case Western Reserve University in Cleveland with a dual major in aerospace engineering and mechanical engineering, Ryan had an internship at Marshall, working on a payload for a science mission onboard the International Space Station.
      After working for a year on satellite design, Ryan returned to Marshall. She noted that the opportunity to work in Marshall’s Engine Systems branch, to be involved with pushing technology forward, and to work on Artemis, really drew her back to NASA. Ryan later earned a master’s degree in aerospace systems from the University of Alabama in Huntsville.
      When not occupied with rocket engine development, Ryan likes to work on quieter hobbies in her free time, including reading, board games, crocheting, and solving all manner of puzzles – crosswords, number games, word games, and more. Her interest for solving puzzles carries over into her work on the Raptor rocket engines for HLS.
      “My favorite tasks are the ones that most resemble a puzzle,” Ryan said. “If we’re investigating an issue and have a lot of information to assess, I love putting all the pieces together and figuring out what happened, why, and the path forward. I enjoy digging into the data and solving those puzzles.”
      With Artemis, NASA will explore more of the Moon than ever before, learn how to live and work away from home, and prepare for future human exploration of Mars. NASA’s SLS (Space Launch System) rocket, exploration ground systems, and Orion spacecraft, along with the HLS, next-generation spacesuits, Gateway lunar space station, and future rovers are NASA’s foundation for deep space exploration.
      › Back to Top
      I Am Artemis: Casey Wolfe
      While precision, perseverance, and engineering are necessary skills in building a Moon rocket, Casey Wolfe knows that one of the most important aspects for the job is teamwork.
      “Engineering is vital, but to get this type of work done, you need to take care of the human element,” said Wolfe, the assistant branch chief of the advanced manufacturing branch in the Materials and Processes Laboratory at NASA’s Marshall Space Flight Center.
      Casey Wolfe is developing and producing the next generation payload adapter for NASA’s SLS (Space Launch System) super-heavy lift rocket. The adapter is made with some of the world’s most advanced composite manufacturing techniques.NASA/Sam Lott Together with her team, Wolfe is developing and producing the next generation payload adapter for NASA’s SLS (Space Launch System) super-heavy lift rocket. The adapter is made with some of the world’s most advanced composite manufacturing techniques.
      Wolfe’s work integrates the technical day-to-day operations and personnel management of the composites manufacturing team and additive manufacturing team, balancing production of SLS hardware with the creation of new engines using the latest manufacturing technologies. 
      “A lot of my day to day is in managing our two teams, making connections, building relationships, and making sure people feel supported,” Wolfe said. “I conduct individual tag ups with each team member so we can be proactive about anticipating and addressing problems.”
      Wolfe grew up in Huntsville, a place known as the “Rocket City,” but it wasn’t until she visited a job fair while studying at Auburn University for a polymer and fiber engineering degree that she began to consider a career at Marshall. Wolfe applied for and was selected to be a NASA intern through the Pathways Program, working in the non-metallic materials branch of the Materials and Processes Laboratory.
      Wolfe supported a coating system for electrostatic discharge on the first uncrewed test flight of the Orion spacecraft. Launching Dec. 5, 2014, Orion traveled to an altitude of 3,600 miles, orbited Earth twice, and splashed down in the Pacific Ocean. It was during her internship that Wolfe realized how inspirational it felt to be treated like a vital part of a team.
      “The SLS program gave everyone permission to sign the hardware, even me – even though I was just an intern,” Wolfe said. “It was impactful to me, knowing that something I had worked on had my name on it and went to space.” 
      Since being hired by NASA, Wolfe’s work has supported development of the Orion stage adapter diaphragms for Artemis II and Artemis III, and the payload adapters for Artemis IV and beyond. The first three Artemis flights use the SLS Block 1 rocket variant, which can send more than 27 metric tons (59,500 pounds) to the Moon in a single launch. Beginning with Artemis IV, the SLS Block 1B variant will use the new, more powerful exploration upper stage to enable more ambitious missions to deep space, with the cone-shaped payload adapter situated atop the rocket’s exploration upper stage. The new variant will be capable of launching more than 38 metric tons (84,000 pounds) to the Moon in a single launch.
      “While the engineering development unit of the payload adapter is undergoing large-scale testing, our team is working on the production of the qualification article, which will also be tested,” Wolfe said. “Flight components should be starting fabrication in the next six months.”
      When Wolfe isn’t working, she enjoys hiking, gardening, and hanging out with her dogs and large family. Recently, she signed another piece of SLS hardware headed to space: the Orion stage adapter for the second Artemis mission.
      With as many responsibilities as Wolfe juggles, it’s easy to lose sight of her work’s impact. “I work in the lab around the hardware all the time, and in many ways, it can become very rote,” she said.
      But Wolfe won’t forget what she saw one evening when she worked late: “Everybody was gone, and as I walked past the launch vehicle stage adapter, there were two security guards taking pictures of each other in front of it. It was one of those things that made me step back and reflect on what my team accomplishes every day: making history happen.”
      NASA is working to land the first woman, first person of color, and its first international partner astronaut on the Moon under Artemis. SLS is part of NASA’s backbone for deep space exploration, along with the Orion spacecraft, supporting ground systems, advanced spacesuits and rovers, the Gateway in orbit around the Moon, and commercial human landing systems. SLS is the only rocket that can send Orion, astronauts, and supplies to the Moon in a single launch.
      › Back to Top
      NASA’s IXPE Helps Researchers Determine Shape of Black Hole Corona
      By Rick Smith
      New findings using data from NASA’s IXPE (Imaging X-ray Polarimetry Explorer) mission offer unprecedented insight into the shape and nature of a structure important to black holes called a corona.
      A corona is a shifting plasma region that is part of the flow of matter onto a black hole, about which scientists have only a theoretical understanding. The new results reveal the corona’s shape for the first time, and may aid scientists’ understanding of the corona’s role in feeding and sustaining black holes.
      This illustration of material swirling around a black hole highlights a particular feature, called the “corona,” which can be seen as a purple haze floating above the underlying accretion disk and extending slightly inside its inner edge. The material within the inner accretion disk is incredibly hot and would glow with a blinding blue-white light, but here has been reduced in brightness to make the corona stand out with better contrast. Its purple color is purely illustrative, standing in for the X-ray glow that would not be obvious in visible light. The warp in the disk is a realistic representation of how the black hole’s immense gravity acts like an optical lens, distorting our view of the flat disk that encircles it.NASA/Caltech-IPAC/Robert Hurt Many black holes, so named because not even light can escape their titanic gravity, are surrounded by accretion disks, debris-cluttered whirlpools of gas. Some black holes also have relativistic jets – ultra-powerful outbursts of matter hurled into space at high speed by black holes that are actively eating material in their surroundings.
      Less well known, perhaps, is that snacking black holes, much like Earth’s Sun and other stars, also possess a superheated corona. While the Sun’s corona, which is the star’s outermost atmosphere, burns at roughly 1.8 million degrees Fahrenheit, the temperature of a black hole corona is estimated at billions of degrees.
      Astrophysicists previously identified coronae among stellar-mass black holes – those formed by a star’s collapse – and supermassive black holes such as the one at the heart of the Milky Way galaxy.
      “Scientists have long speculated on the makeup and geometry of the corona,” said Lynne Saade, a postdoctoral researcher at NASA’s Marshall Space Flight Center and lead author of the new findings. “Is it a sphere above and below the black hole, or an atmosphere generated by the accretion disk, or perhaps plasma located at the base of the jets?”
      Enter IXPE, which specializes in X-ray polarization, the characteristic of light that helps map the shape and structure of even the most powerful energy sources, illuminating their inner workings even when the objects are too small, bright, or distant to see directly. Just as we can safely observe the Sun’s corona during a total solar eclipse, IXPE provides the means to clearly study the black hole’s accretion geometry, or the shape and structure of its accretion disk and related structures, including the corona.
      “X-ray polarization provides a new way to examine black hole accretion geometry,” Saade said. “If the accretion geometry of black holes is similar regardless of mass, we expect the same to be true of their polarization properties.”
      IXPE demonstrated that, among all black holes for which coronal properties could be directly measured via polarization, the corona was found to be extended in the same direction as the accretion disk – providing, for the first time, clues to the corona’s shape and clear evidence of its relationship to the accretion disk. The results rule out the possibility that the corona is shaped like a lamppost hovering over the disk. 
      The research team studied data from IXPE’s observations of 12 black holes, among them Cygnus X-1 and Cygnus X-3, stellar-mass binary black hole systems about 7,000 and 37,000 light-years from Earth, respectively, and LMC X-1 and LMC X-3, stellar-mass black holes in the Large Magellanic Cloud more than 165,000 light-years away. IXPE also observed a number of supermassive black holes, including the one at the center of the Circinus galaxy, 13 million light-years from Earth, and those in galaxies NGC 1068 and NGC 4151, 47 million light-years away and nearly 62 million light-years away, respectively.
      Stellar mass black holes typically have a mass roughly 10 to 30 times that of Earth’s Sun, whereas supermassive black holes may have a mass that is millions to tens of billions of times larger. Despite these vast differences in scale, IXPE data suggests both types of black holes create accretion disks of similar geometry.
      That’s surprising, said Marshall astrophysicist Philip Kaaret, principal investigator for the IXPE mission, because the way the two types are fed is completely different.
      “Stellar-mass black holes rip mass from their companion stars, whereas supermassive black holes devour everything around them,” he said. “Yet the accretion mechanism functions much the same way.”
      That’s an exciting prospect, Saade said, because it suggests that studies of stellar-mass black holes – typically much closer to Earth than their much more massive cousins – can help shed new light on properties of supermassive black holes as well. The team next hopes to make additional examinations of both types.
      Saade anticipates there’s much more to glean from X-ray studies of these behemoths. “IXPE has provided the first opportunity in a long time for X-ray astronomy to reveal the underlying processes of accretion and unlock new findings about black holes,” she said.
      The complete findings are available in the latest issue of The Astrophysical Journal.
      Smith, an Aeyon employee, supports the Marshall Office of Communications.
      › Back to Top
      Michoud Gets a Rare Visitor
      The Oort Cloud comet, called C/2023 A3 Tsuchinshan-ATLAS, passes over Southeast Louisiana near New Orleans, home of NASA’s Michoud Assembly Facility on Oct. 13. The comet is making its first appearance in documented human history; it was last seen in the night sky 80,000 years ago. The Tsuchinshan-ATLAS comet made its first close pass by Earth in mid-October and will remain visible to viewers in the Northern Hemisphere just between the star Arcturus and planet Venus through early November. Eric Bordelon, a photographer for Michoud, captured the image, which was featured as NASA’s image of the day. “On Sunday evening I decided to head out to find the comet I’ve read so much about,” Bordelon said. “Struggling at first to see it, once my eyes adjusted to the darkness I could faintly see it. I pulled my camera out and set up a tripod, with a longer exposure around six seconds I was able to capture this shot with a single frame. The far off setting sun made a beautiful color gradient in the dark sky with the other stars just beginning to appear.” Read more about the comet. (NASA/Eric Bordelon)
      › Back to Top
      Hubble Captures New View of Galaxy M90
      A new NASA/ESA Hubble Space Telescope image features the striking spiral galaxy Messier 90 (M90, also NGC 4569), located in the constellation Virgo. In 2019, Hubble released an image of M90 created with Wide Field and Planetary Camera 2 (WFPC2) data taken in 1994, soon after its installation. That WFPC2 image has a distinctive stair-step pattern due to the layout of its sensors. Wide Field Camera 3 (WFC3) replaced WFPC2 in 2009 and Hubble used WFC3 when it turned its aperture to Messier 90 again in 2019 and 2023. That data resulted in this stunning new image, providing a much fuller view of the galaxy’s dusty disk, its gaseous halo, and its bright core.
      This eye-catching image offers us a new view of the spiral galaxy Messier 90 from the NASA/ESA Hubble Space Telescope. ESA/Hubble & NASA, D. Thilker, J. Lee and the PHANGS-HST Team The inner regions of M90’s disk are sites of star formation, seen here in red H-alpha light from nebulae. M90 sits among the galaxies of the relatively nearby Virgo Cluster, and its orbit took M90 on a path near the cluster’s center about three hundred million years ago. The density of gas in the inner cluster weighed on M90 like a strong headwind, stripping enormous quantities of gas from the galaxy and creating the diffuse halo we see around it. This gas is no longer available to form new stars in M90, with the spiral galaxy eventually fading as a result.
      M90 is located 55 million light-years from Earth, but it’s one of the very few galaxies getting closer to us. Its orbit through the Virgo cluster has accelerated so much that M90 is in the process of escaping the cluster entirely. By happenstance, it’s moving in our direction. Astronomers have measured other galaxies in the Virgo cluster at similar speeds, but in the opposite direction. As M90 continues to move toward us over billions of years, it will also be evolving into a lenticular galaxy.
      › Back to Top
      View the full article
  • Check out these Videos

×
×
  • Create New...