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The Marshall Star for October 23, 2024

An illustration of a black hole with a dark circle surrounded by light discs.

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 Bell
Seth Bell
NASA

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 Young
Yancy Young
NASA

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 Thornton
Brooke Thornton
NASA

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.

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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.”

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.

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.

Marshall team members participate in Bingo during the BBQ hosted by the Marshall Exchange. (NASA/Charles Beason)

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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 Lee Clark.
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.

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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 Human Landing System Program Raptor engine insight lead Sarah Ryan poses in front of a model of SpaceX’s Starship human landing system. Sarah is in a navy shirt and khaki pants. She poses with her arms crossed in front of her chest. The black and white lander is just over her right shoulder.
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.

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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.
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.

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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.

An illustration of a black hole with a dark circle surrounded by light discs.
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.

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Michoud Gets a Rare Visitor

The night sky goes from blue to pink as you look from top to bottom. In the middle is a comet; it looks like a relatively bright yellow dot with a long, diffuse yellow tail. Some stars are visible in the blue portion of the sky.

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)

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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.
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.

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      NASA, FAA Partner to Develop New Wildland Fire Technologies

      Artist’s rendering of remotely piloted aircraft providing fire suppression, monitoring and communications capabilities during a wildland fire. Illustration credit: NASA NASA researchers continued to develop and test airspace management technologies to enable remotely-piloted aircraft to fight and monitor wildland fires 24 hours a day.  
      The Advanced Capabilities for Emergency Response Operations (ACERO) project seeks to use drones and advanced aviation technologies to improve wildland fire coordination and operations. 

      NASA and Forest Service Use Balloon to Help Firefighters Communicate

      The Aerostar Thunderhead balloon carries the STRATO payload into the sky to reach the stratosphere for flight testing. The balloon appears deflated because it will expand as it rises to higher altitudes where pressures are lower.Image credit: Colorado Division of Fire Prevention and Control Center of Excellence for Advanced Technology Aerial Firefighting/Austin Buttlar  The Strategic Tactical Radio and Tactical Overwatch (STRATO) technology is a collaborative effort to use high-altitude balloons to improve real-time communications among firefighters battling wildland fires. Providing cellular communication from above can improve firefighter safety and firefighting efficiency.

      A Fully Reimagined Visitor Center 

      The NASA Ames Visitor Center includes exhibits and activities, sharing the work of NASA in Silicon Valley with the public.Image credit: NASA Ames/Don RIchey The NASA Ames Visitor Center at Chabot Space & Science Center in Oakland, California includes a fully reimagined 360-degree experience, featuring new exhibits, models, and more. An interactive exhibit puts visitors in the shoes of a NASA Ames scientist, designing and testing rovers, planes, and robots for space exploration. 

      Ames Collaborations in the Community

      Former NASA astronauts Yvonne Cagle and Kenneth Cockrell pose with Eli Toribio and Rhydian Daniels at the University of California, San Francisco Bakar Cancer Hospital. Patients gathered to meet the astronauts and learn more about human spaceflight and NASA’s cancer research effortsImage credit: NASA Ames/Brandon Torres Navarrete NASA astronauts, scientists, and researchers, and leadership from the University of California, San Francisco (UCSF) met with cancer patients and gathered in a discussion about potential research opportunities and collaborations as part of President Biden and First Lady Jill Biden’s Cancer Moonshot initiative on Oct. 4. During the visit with patients, NASA astronaut Yvonne Cagle and former astronaut Kenneth Cockrell answered questions about spaceflight and life in space. 
      Ames and the University of California, Berkeley, expanded their partnership, organizing workshops to exchange on their areas of technical expertise, including in Advanced Air Mobility, and to develop ideas for the Berkeley Space Center, an innovation hub proposed for development at Ames’ NASA Research Park. Under a new agreement, NASA also will host supercomputing resources for UC Berkeley, supporting the development of novel computing algorithms and software for a wide variety of scientific and technology areas.

      NASA’s Ames Research Center Celebrates 85 Years of Innovation
      by Rachel Hoover
      Ames Research Center in California’s Silicon Valley pre-dates a lot of things. The center existed before NASA – the very space and aeronautics agency it’s a critical part of today. And of all the marvelous advancements in science and technology that have fundamentally changed our lives over the last 85 years since its founding, one aspect has remained steadfast; an enduring commitment to what’s known by some on-center simply as, “an atmosphere of freedom.” 
      The NACA Ames laboratory in 1944.Image credit: NASA Years before breaking ground at the site that would one day become home to the world’s preeminent wind tunnels, supercomputers, simulators, and brightest minds solving some of the world’s toughest challenges, Joseph Sweetman Ames, the center’s namesake, described a sentiment that would guide decades of innovation and research: 
      “My hope is that you have learned or are learning a love of freedom of thought and are convinced that life is worthwhile only in such an atmosphere,” he said in an address to the graduates of Johns Hopkins University in June 1935.
      That spirit and the people it attracted and retained are a crucial part of how Ames, along with other N.A.C.A. research centers, ultimately made technological breakthroughs that enabled humanity’s first steps on the Moon, the safe return of spacecraft through Earth’s atmosphere, and many other discoveries that benefit our day-to-day lives.
      Russell Robinson momentarily looks to the camera while supervising the first excavation at what would become Ames Research Center.Image credit: NACA “In the context of my work, an atmosphere of freedom means the freedom to pursue high-risk, high-reward, innovative ideas that may take time to fully develop and — most importantly — the opportunity to put them into practice for the benefit of all,” said Edward Balaban, a researcher at Ames specializing in artificial intelligence, robotics, and advanced mission concepts.
      Balaban’s career at Ames has involved a variety of projects at different stages of development – from early concept to flight-ready – including experimenting with different ways to create super-sized space telescopes in space and using artificial intelligence to help guide the path a rover might take to maximize off-world science results. Like many Ames researchers over the years, Balaban shared that his experience has involved deep collaborations across science and engineering disciplines with colleagues all over the center, as well as commercial and academic partners in Silicon Valley where Ames is nestled and beyond. This is a tradition that runs deep at Ames and has helped lead to entirely new fields of study and seeded many companies and spinoffs.
      Before NASA, Before Silicon Valley: The 1939 Founding of Ames Aeronautical Laboratory “In the fields of aeronautics and space exploration the cost of entry can be quite high. For commercial enterprises and universities pursuing longer term ideas and putting them into practice often means partnering up with an organization such as NASA that has the scale and multi-disciplinary expertise to mature these ideas for real-world applications,” added Balaban.
      “Certainly, the topics of inquiry, the academic freedom, and the benefit to the public good are what has kept me at Ames,” reflected Ross Beyer, a planetary scientist with the SETI Institute at Ames. “There’s not a lot of commercial incentive to study other planets, for example, but maybe there will be soon. In the meantime, only with government funding and agencies like NASA can we develop missions to explore the unknown in order to make important fundamental science discoveries and broadly share them.”
      For Beyer, his boundary-breaking moment came when he searched – and found – software engineers at Ames capable and passionate about open-source software to generate accurate, high-resolution, texture-mapped, 3D terrain models from stereo image pairs. He and other teams of NASA scientists have since applied that software to study and better understand everything from changes in snow and ice characteristics on Earth, as well as features like craters, mountains, and caves on Mars or the Moon. This capability is part of the Artemis campaign, through which NASA will establish a long-term presence at the Moon for scientific exploration with commercial and international partners. The mission is to learn how to live and work away from home, promote the peaceful use of space, and prepare for future human exploration of Mars. 
      “As NASA and private companies send missions to the Moon, they need to plan landing sites and understand the local environment, and our software is freely available for anyone to use,” Beyer said. “Years ago, our management could easily have said ‘No, let’s keep this software to ourselves; it gives us a competitive advantage.’ They didn’t, and I believe that NASA writ large allows you to work on things and share those things and not hold them back.” 
      When looking forward to what the next 85 years might bring, researchers shared a belief that advancements in technology and opportunities to innovate are as expansive as space itself, but like all living things, they need a healthy atmosphere to thrive. Balaban offered, “This freedom to innovate is precious and cannot be taken for granted. It can easily fall victim if left unprotected. It is absolutely critical to retain it going forward, to ensure our nation’s continuing vitality and the strength of the other freedoms we enjoy.”

      Ames Aeronautical Laboratory.Image credit: NACA Today Marks the Retirement of the Astrogram Newsletter
      by Astrid Albaugh
      For 66 years, the Astrogram has told the story of NASA’s Ames Research Center. Over those six-plus decades, the newsletter has documented hundreds of missions led by Ames, the progression of Hangar One’s reclamation, space shuttle launches with Ames’ payloads aboard them, countless VIP visits, and everything in between.
      Ames published the first edition of the Astrogram in October 1958, coinciding with the transition of the center from its original incarnation as the National Advisory Committee for Aeronautics Ames Aeronautical Laboratory to a National Aeronautics and Space Administration (NASA) research center.
      The newsletter has evolved over time, alongside the center. From October 1958 through January 2016, the Astrogram was published in print, before a digital edition was developed. In January 2016, the Astrogram transitioned to a digital-only format. Below are examples of some of the Astrogram issues from over the years. More are forthcoming from 1998 and prior once they are retrieved from the archives.
      October 2014 Astrogram September 2010 Astrogram I have served as the editor of the Astrogram since February 1998. Over the past quarter century, it has been an interesting, and sometimes quite challenging, task for me to capture the breadth and depth of Ames’s story and ensure that we always published the newsletter on time. I still remember trekking over to the center’s imaging office to review the physical negatives and images that the Ames photographers had taken of events onsite and select the most compelling photos. I used a very early version of visual design software to craft the layout. When the paper was completed, I’d file it onto a CD and then hand it to the courier who would drive from the San Francisco printshop to pick it up from me. Once and awhile, someone would request to have an additional feature added, requiring multiple trips up the 101 and back. Sometimes I’d come in on the weekends to work on the paper, due to late submissions, much to the chagrin of my kids.
      July 2007 Astrogram It has been a pleasure serving as the editor over the past quarter century, almost as many years as my kids are old. A person once asked me if I had changed my name to Astrid since it’s so like the word Astrogram. Any relationship between the newsletter and my name is simply serendipity. I have enjoyed being behind the scenes, mostly working diligently at my computer. Many at Ames know my name because of the newsletter but may have never met me in person. It’s been amusing sometimes when I encounter someone who can’t put a finger as to why they knew my name but didn’t recognize me standing in front of them. Their usual response when they realized why they know me was, “Ah, Astrid of the Astrogram.”
      March 20, 1998 Astrogram Just as NASA innovates, the content of the Astrogram has to innovate as well. Many of the stories that you used to read in the Astrogram, you can now find on our NASA Ames web page here. If you would like to access past, archived issues of the Astrogram, going back to 1958, please consult the Ames Research Center Archives. I will continue to help tell Ames’s story, just using new platforms.
      Whether this is your first issue or you have been an Astrogram supporter for decades, thank you for reading!
      – Astrid of the Astrogram officially signing off


      View the full article
    • By NASA
      A method for evaluating thermophysical properties of metal alloys

      Simulation of the solidification of metal alloys, a key step in certain industrial processes, requires reliable data on their thermophysical properties such as surface tension and viscosity. Researchers propose comparing predictive models with experimental outcomes as a method to assess these data.

      Scientists use data on surface tension and viscosity of titanium-based alloys in industrial processes such as casting and crystal growth. Non-Equilibrium Solidification, Modelling for Microstructure Engineering of Industrial Alloys, an ESA (European Space Agency) investigation, examined the microstructure and growth of these alloys using the station’s Electromagnetic Levitator. This facility eliminates the need for containers, which can interfere with experiment results.
      European Space Agency (ESA) astronaut Alexander Gerst is shown in the Columbus module of the International Space Station during the installation of the Electromagnetic Levitator.ESA/Alexander Gerst Overview of techniques for measuring thermal diffusion

      Researchers present techniques for measuring thermal diffusion of molecules in a mixture. Thermal diffusion is measured using the Soret coefficient – the ratio of movement caused by temperature differences to overall movement within the system. This has applications in mineralogy and geophysics such as predicting the location of natural resources beneath Earth’s surface.

      A series of ESA investigations studied diffusion, or how heat and particles move through liquids, in microgravity. Selectable Optical Diagnostics Instrument-Influence of VIbrations on DIffusion of Liquids examined how vibrations affect diffusion in mixtures with two components and SODI-DCMIX measured more-complex diffusion in mixtures of three or more components. Understanding and predicting the effects of thermal diffusion has applications in various industries such as modeling of underground oil reservoirs.
      NASA astronaut Kate Rubins works on Selectable Optical Diagnostics Instrument Experiment Diffusion Coefficient Mixture-3 (SODI) DCMix-3 installation inside the station’s Microgravity Science Glovebox.JAXA (Japan Aerospace Exploration Agency)/Takuya Onishi Research validates ferrofluid technology

      Researchers validated the concept of using ferrofluid technology to operate a thermal control switch in a spacecraft. This outcome could support development of more reliable and long-lasting spacecraft thermal management systems, increasing mission lifespan and improving crew safety.

      Überflieger 2: Ferrofluid Application Research Goes Orbital analyzed the performance of ferrofluids, a technology that manipulates components such as rotors and switches using magnetized liquids and a magnetic field rather than mechanical systems, which are prone to wear and tear. This technology could lower the cost of materials for thermal management systems, reduce the need for maintenance and repair, and help avoid equipment failure. The paper discusses possible improvements to the thermal switch, including optimizing the geometry to better manage heat flow.
      A view of the Ferrofluid Application Research Goes Orbital investigation hardware aboard the International Space Station. UAE (United Arab Emirates)/Sultan AlneyadiView the full article
    • By NASA
      4 min read
      Preparations for Next Moonwalk Simulations Underway (and Underwater)
      NASA/Quincy Eggert NASA’s Armstrong Flight Research Center in Edwards, California, is preparing today for tomorrow’s mission. Supersonic flight, next generation aircraft, advanced air mobility, climate changes, human exploration of space, and the next innovation are just some of the topics our researchers, engineers, and mission support teams focused on in 2024.
      NASA Armstrong began 2024 with the public debut of the X-59 quiet supersonic research aircraft. Through the unique design of the X-59, NASA aims to reduce the sonic boom to make it much quieter, potentially opening the future to commercial supersonic flight over land. Throughout the first part of the year, NASA and international researchers studied air quality across Asia as part of a global effort to better understand the air we breathe. Later in the year, for the first time, a NASA-funded researcher conducted an experiment aboard a commercial suborbital rocket, studying how changes in gravity during spaceflight affect plant biology.
      Here’s a look at more NASA Armstrong accomplishments throughout 2024:
      Our simulation team began work on NASA’s X-66 simulator, which will use an MD-90 cockpit and allow pilots and engineers to run real-life scenarios in a safe environment. NASA Armstrong engineers completed and tested a model of a truss-braced wing design, laying the groundwork for improved commercial aircraft aerodynamics. NASA’s Advanced Air Mobility mission and supporting projects worked with industry partners who are building innovative new aircraft like electric air taxis. We explored how these new designs may help passengers and cargo move between and inside cities efficiently. The team began testing with a custom virtual reality flight simulator to explore the air taxi ride experience. This will help designers create new aircraft with passenger comfort in mind. Researchers also tested a new technology that will help self-flying aircraft avoid hazards. A NASA-developed computer software tool called OVERFLOW helped several air taxi companies predict aircraft noise and aerodynamic performance. This tool allows manufacturers to see how new design elements would perform, saving the aerospace industry time and money. Our engineers designed a camera pod with sensors at NASA Armstrong to help advance computer vision for autonomous aviation and flew this pod at NASA’s Kennedy Space Center in Florida. NASA’s Quesst mission marked a major milestone with the start of tests on the engine that will power the quiet supersonic X-59 experimental aircraft. In February and March, NASA joined international researchers in Asia to investigate pollution sources. The now retired DC-8 and NASA Langley Gulfstream III aircraft collected air measurements over the Philippines, South Korea, Malaysia, Thailand, and Taiwan. Combined with ground and satellite observations, these measurements continue to enrich global discussions about pollution origins and solutions. The Gulfstream IV joined NASA Armstrong’s fleet of airborne science platforms. Our teams modified the aircraft to accommodate a next-generation science instrument that will collect terrain information of the Earth in a more capable, versatile, and maintainable way. The ER-2 and the King Air supported the development of spaceborne instruments by testing them in suborbital settings. On the Plankton, Aerosol, Cloud, ocean Ecosystem Postlaunch Airborne eXperiment mission (PACE-PAX), the ER-2 validated data collected by the PACE satellite about the ocean, atmosphere, and surfaces. Operating over several countries, researchers onboard NASA’s C-20A collected data and images of Earth’s surface to understand global ecosystems, natural hazards, and land surface changes. Following Hurricane Milton, the C-20A flew over affected areas to collect data that could help inform disaster response in the future. We also tested nighttime precision landing technologies that safely deliver spacecraft to hazardous locations with limited visibility. With the goal to improve firefighter safety, NASA, the U.S. Forest Service, and industry tested a cell tower in the sky. The system successfully provided persistent cell coverage, enabling real-time communication between firefighters and command posts. Using a 1960s concept wingless, powered aircraft design, we built and tested an atmospheric probe to better and more economically explore giant planets. NASA Armstrong hosted its first Ideas to Flight workshop, where subject matter experts shared how to accelerate research ideas and technology development through flight. These are just some of NASA Armstrong’s many innovative research efforts that support NASA’s mission to explore the secrets of the universe for the benefit of all.
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      Last Updated Dec 20, 2024 EditorDede DiniusContactSarah Mannsarah.mann@nasa.govLocationArmstrong Flight Research Center Related Terms
      Armstrong Flight Research Center Advanced Air Mobility Aeronautics C-20A DC-8 Earth Science ER-2 Flight Opportunities Program Quesst (X-59) Sustainable Flight Demonstrator Explore More
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