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The Marshall Star for July 31, 2024

After completing its journey from NASA’s Michoud Assembly Facility in New Orleans aboard the Pegasus barge, teams with Exploration Ground Systems (EGS) transport the agency’s powerful SLS (Space Launch System) core stage to NASA’s Kennedy Space Center’s Vehicle Assembly Building in Florida on Tuesday, July 23, 2024. Once inside, SLS will be prepared for integration atop the mobile launcher ahead of the Artemis II launch.

SLS Core Stage Rolls Inside Vehicle Assembly Building at Kennedy

NASA’s SLS (Space Launch System) rocket core stage for the Artemis II mission is inside the Vehicle Assembly Building at the agency’s Kennedy Space Center.

Tugboats and towing vessels moved the barge and core stage 900-miles to the Florida spaceport from NASA’s Michoud Assembly Facility, where it was manufactured and assembled.

After completing its journey from NASA’s Michoud Assembly Facility in New Orleans aboard the Pegasus barge, teams with Exploration Ground Systems (EGS) transport the agency’s powerful SLS (Space Launch System) core stage to NASA’s Kennedy Space Center’s Vehicle Assembly Building in Florida on Tuesday, July 23, 2024. Once inside, SLS will be prepared for integration atop the mobile launcher ahead of the Artemis II launch.
After completing its journey from NASA’s Michoud Assembly Facility aboard the Pegasus barge, teams with Exploration Ground Systems transport the agency’s powerful SLS (Space Launch System) core stage to NASA’s Kennedy Space Center’s Vehicle Assembly Building on July 23.
NASA/Isaac Watson

Team members with NASA’s Exploration Ground Systems Program safely transferred the 212-foot-tall core stage from the agency’s Pegasus barge, which arrived at NASA Kennedy’s Complex 39 turn basin wharf on July 23, onto the self-propelled module transporter, which is used to move large elements of hardware. It was then rolled to the Vehicle Assembly Building transfer aisle where teams will process it until it is ready for rocket stacking operations.

In the coming months, teams will integrate the rocket core stage atop the mobile launcher with the additional Artemis II flight hardware, including the twin solid rocket boosters, launch vehicle stage adapter, and the Orion spacecraft.

The Artemis II test flight will be NASA’s first mission with crew under the Artemis campaign, sending NASA astronauts Victor Glover, Christina Koch, and Reid Wiseman, as well as CSA (Canadian Space Agency) astronaut Jeremy Hansen, on a 10-day journey around the Moon and back.

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Take 5 with Chris Calfee

By Wayne Smith

Ask Chris Calfee about his favorite memory from his 38-year career at NASA’s Marshall Space Flight Center and you’ll discover it’s a difficult question to answer.

That’s because there have been many memories.

Chris Calfee is the SLS Spacecraft Payload Integration and Evolution element manager.
Chris Calfee is the SLS Spacecraft Payload Integration and Evolution element manager.
NASA/Charles Beason

Calfee was the integrator for the upper stage spacecraft for the Marshall-led Chandra X-Ray Observatory, which marked its 25th launch anniversary July 23. He’s worked with Demonstration of Autonomous Rendezvous Technology (DART), a technology mission aimed at demonstrating that a spacecraft could independently rendezvous with an orbiting satellite without human intervention. Calfee was the booster manager for the Ares I-X test flight, which he points to as another career highlight.

And then there’s his favorite memory – working with NASA’s SLS (Space Launch System) rocket and watching the 2022 Artemis I launch from NASA’s Kennedy Space Center.

I’ve been fortunate in my career to have the opportunities I’ve had with NASA,” said Calfee, the SLS Spacecraft Payload Integration and Evolution (SPIE) element manager. “Seeing the Chandra mission fly and the success it has had is awesome. Being able to work DART from cradle to grave, including its flight, was unforgettable. But I’d have to say being able to represent the SLS SPIE Element Office at Kennedy’s Launch Control Center and seeing Artemis I light up the night sky is the proudest moment.”

As the SLS Spacecraft/Payload Integration and Evolution element manager, Calfee’s responsibilities include overseeing the development and delivering key adapter hardware for SLS rockets that will power the first crewed Artemis missions and first flight of SLS in its evolved Block 1B configuration. The hardware includes the launch vehicle stage adapter, interim cryogenic propulsion stage, and the Orion stage adapter – and the universal stage adapter for SLS Block 1B. The SPIE Element Office serves a key role in the successful execution of the SLS mission, both for the initial launch capability as well as the evolution of subsequent rocket configurations.

NASA moved a step closer to the Artemis II launch with the July shipment of the SLS core stage to Kennedy from the agency’s Michoud Assembly Facility. Calfee and his team have the adapters complete for Artemis II and will soon ship them to Kennedy for launch preparations. As work advances toward Artemis II, Calfee looks back on the Artemis I launch as a “surreal experience.” But he put his celebration on hold as he watched the initial moments of the flight.

“The pressure was on the SPIE hardware to finish the job for SLS as we tracked the successful booster burn and separation, and then the core stage’s excellent performance,” said Calfee, who is from Newport, Tennessee, and a graduate of the University of Tennessee. “The interim cryogenic propulsion (ICPS) stage 20-minute burn was approximately one and a half hours after launch, followed by Orion spacecraft separation from the ICPS and Orion stage adapter, the most critical event of the mission from my perspective. It was another huge relief to see the ICPS burn and the Orion separation event go flawlessly.”

Calfee pauses for a photo in front of the SLS rocket ahead of the Artemis I launch in 2022.
Calfee pauses for a photo in front of the SLS rocket ahead of the Artemis I launch in 2022.
NASA/Courtesy of Chris Calfee

Memorable indeed.

Question: Looking ahead to Artemis II and the Artemis campaign, what excites you most about the future of human space exploration and your team’s role it?

Calfee: For me personally, it is exciting just to be a part of the future of human space flight and having the opportunity to influence that future. With respect to the SPIE team, it’s a similar feeling. Having the opportunity to lead a team that has such a significant role and responsibility in our future is an awesome experience.

Question: Who or what drives/motivates you?

Calfee: The opportunity to make a difference, be a part of history, and lead and mentor our future leaders.

Question: Who or what inspired you to pursue an education/career that led you to NASA and Marshall?

Calfee: My parents were my inspiration and provided me the opportunity to pursue my education. Although I followed the space program as a kid, specifically the Apollo program and Moon landings, I never dreamed that I would actually have the opportunity to work for NASA. I found my way to NASA via an on-campus interview job fair, was invited to Marshall for a follow-up interview, and it became an easy decision when an offer was made.

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

Calfee: For those early in their career, keep an open mind and be willing to take on new challenges. Diversify the resume. For those in new leadership roles, never get complacent. The moment you think you have it all figured out, something will surprise and humble you. I love the quote, “Get comfortable being uncomfortable,” because I guarantee as a leader, you will experience many uncomfortable moments.

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

Calfee: Spending time with my grandkids. I also enjoy homebrewing and wine making, and I probably spend too much time following and watching college sports.

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

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Stars, Stripes, and STEM: Q&A with Former NASA Intern, Miss America

Team members at NASA’s Marshall Space Flight Center recently sat down with reigning Miss America, Madison Marsh. In addition to her crown, Marsh is a second lieutenant in the United States Air Force and a former intern who contributed to astrophysics research at Marshall. Watch to learn more about her experience studying gamma-ray bursts and hear what advice she has for anyone interested in a STEM career. (NASA)

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Thomas Brown Named Marshall’s Chief Engineer, Manager of Engineering Office

Thomas Brown has been named center chief engineer and manager of the Chief Engineering Office within the Engineering Directorate at NASA’s Marshall Space Flight Center, effective July 28.

Thomas M. Brown, NASA
Thomas Brown has been named center chief engineer and manager of the Chief Engineering Office within the Engineering Directorate at NASA’s Marshall Space Flight Center.
NASA

In his role, Brown will be responsible for assuring the technical excellence and success of all Marshall-assigned spacecraft, propulsion, science payload, life support, and mission systems. He will provide expert technical leadership in planning, directing, and executing research, technology, ground and flight systems design and development, production, integration, and sustaining engineering for the Space Launch System Program, Human Landing System Program, the Human Exploration Development and Operations Office, and the Science and Technology Office.

Brown previously served as director of the Propulsion Systems Department of the Engineering Directorate, since 2020. In this role, he managed a $68 million annual budget and oversaw a workforce responsible for new and ongoing design and development activities for the propulsion components and systems at Marshall and other NASA centers.

As the capability lead for In-Space Transportation Systems from 2018-2020, Brown led the Systems Capability Leadership Team of system-specific subject matter experts from across the agency for the in-space transportation system’s disciplines, which support NASA’s robotic and human exploration missions. From 2014 to 2018, he was the NASA Technical Fellow for Propulsion and the NASA Propulsion Capability Lead, the agency’s most senior propulsion subject matter expert.

Between 2005 and 2014, Brown served as chief of two divisions within the Propulsion Systems Department, as well as technical advisor to the director of the Propulsion Systems Department at Marshall, where he assisted in internal technology investment planning and served in agency and cross-government level assignments. In 2007, he completed a one-year developmental assignment at Glenn Research Center as acting deputy manager of the Advanced Capabilities Project Office.

Brown began his NASA career at Marshall in 1999 as an aerospace engineer in the Space Transportation Directorate, performing propulsion systems analysis and integration. Initially working design, analysis, and integration of the X-34 Main Propulsion System and the Fastrac/MC-1 rocket engine, Brown’s activities quickly expanded into a broad range of propulsion technology development efforts. He served as chief engineer for several of these efforts during both the Second Generation Reusable Launch Vehicle Program and the Next Generation Launch Technology Program. Specific projects included the Main Propulsion and Auxiliary Propulsion Systems Technology Project and the ISTAR, Rocket Based Combined Cycle technology project.

Brown received a bachelor’s degree in physics from Allegheny College in Meadville, Pennsylvania, before earning his master’s and doctoral degrees in mechanical engineering from Vanderbilt University. He holds a U.S. patent and has published more than 30 refereed journal publications, book sections, and conference proceedings related to fundamental combustion, advanced measurement techniques, propulsion technology, and propulsion systems analysis and integration.

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Marshall Deputy Director Rae Ann Meyer Honored During Huntsville City Football Club Space Night

on-field.jpg?w=1536

NASA Marshall Deputy Director Rae Ann Meyer waves to a crowd of more than 4,000 fans at the Wicks Family Field at Joe Davis Stadium in Huntsville on July 27 during halftime of the soccer match between Huntsville City Football Club and Atlanta United 2. Meyer was honored as the “Hero of the Match,” recognizing her leadership and accomplishments in 35 years of service to the agency. (NASA/Taylor Goodwin)

inside-exhibits.jpg?w=1545

Representatives from 10 Marshall programs and projects staffed booths and exhibits at the stadium throughout the match, sharing details of their respective work to thousands of guests. (NASA/Taylor Goodwin)

outside-display.jpg?w=1545

Marshall’s exhibit footprint began outside of the stadium, welcoming soccer and space fans to the stadium with inflatables and educational materials. (NASA/Taylor Goodwin)

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NASA Supports Burst Test for Orbital Reef Commercial Space Station

An element of a NASA-funded commercial space station, Orbital Reef, under development by Blue Origin and Sierra Space, recently completed a full-scale ultimate burst pressure test as part of the agency’s efforts for new destinations in low Earth orbit.

This milestone is part of a NASA Space Act Agreement awarded to Blue Origin in 2021. Orbital Reef includes elements provided by Sierra Space, including the LIFE (Large Integrated Flexible Environment) habitat structure.

A photograph showing Sierra Space’s LIFE habitat following a full-scale ultimate burst pressure test at NASA’s Marshall Space Flight Center in Huntsville, Alabama
Sierra Space’s LIFE habitat following a full-scale ultimate burst pressure test at NASA’s Marshall Space Flight Center.
Sierra Space

Teams conducted the burst test on Sierra Space’s LIFE habitat structure using testing capabilities at NASA’s Marshall Space Flight Center. The inflatable habitat is fabricated from high-strength webbings and fabric that form a solid structure once pressurized. The multiple layers of soft goods materials that make up the shell are compactly stowed in a payload fairing and inflated when ready for use, enabling the habitat to launch on a single rocket.

“This is an exciting test by Sierra Space for Orbital Reef, showing industry’s commitment and capability to develop innovative technologies and solutions for future commercial destinations,” said Angela Hart, manager of NASA’s Commercial Low Earth Orbit Development Program at the agency’s Johnson Space Center. “Every successful development milestone by our partners is one more step to achieving our goal of enabling commercial low Earth orbit destinations and expanding the low Earth orbit marketplace.”

The pressurization to failure during the test demonstrated the habitat’s capabilities and provided the companies with critical data supporting NASA’s inflatable softgoods certification guidelines, which recommend a progression of tests to evaluate these materials in relevant operational environments and understand the failure modes.

Demonstrating the habitat’s ability to meet the recommended factor of safety through full-scale ultimate burst pressure testing is one of the primary structural requirements on a soft goods article, such as Sierra Space’s LIFE habitat, seeking flight certification.

Prior to this recent test, Sierra Space conducted its first full-scale ultimate burst pressure test on the LIFE habitat at Marshall in December 2023. Additionally, Sierra Space previously completed subscale tests, first at NASA’s Johnson Space Center and then at Marshall as part of ongoing development and testing of inflatable habitation architecture.

NASA supports the design and development of multiple commercial space stations, including Orbital Reef, through funded and unfunded agreements. The current design and development phase will be followed by the procurement of services from one or more companies.

NASA’s goal is to achieve a strong economy in low Earth orbit where the agency can purchase services as one of many customers to meet its science and research objectives in microgravity. NASA’s commercial strategy for low Earth orbit will provide the government with reliable and safe services at a lower cost, enabling the agency to focus on Artemis missions to the Moon in preparation for Mars while also continuing to use low Earth orbit as a training and proving ground for those deep space missions.

Learn more about NASA’s commercial space strategy.

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DART Mission Sheds New Light on Target Binary Asteroid System

In studying data collected from NASA’s DART (Double Asteroid Redirection Test) mission, which in 2022 sent a spacecraft to intentionally collide with the asteroid moonlet Dimorphos, the mission’s science team has discovered new information on the origins of the target binary asteroid system and why the DART spacecraft was so effective in shifting Dimorphos’ orbit. 

In five recently published papers in Nature Communications, the team explored the geology of the binary asteroid system, comprising moonlet Dimorphos and parent asteroid Didymos, to characterize its origin and evolution and constrain its physical characteristics. 

The various geological features observed on Didymos helped researchers tell the story of Didymos’ origins. The asteroid’s triangular ridge (first panel from left), and the so-called smooth region, and its likely older, rougher “highland” region (second panel from left) can be explained through a combination of slope processes controlled by elevation (third panel from left). The fourth panel shows the effects of spin-up disruption that Didymos likely underwent to form Dimorphos.
The various geological features observed on Didymos helped researchers tell the story of Didymos’ origins. The asteroid’s triangular ridge (first panel from left), and the so-called smooth region, and its likely older, rougher “highland” region (second panel from left) can be explained through a combination of slope processes controlled by elevation (third panel from left). The fourth panel shows the effects of spin-up disruption that Didymos likely underwent to form Dimorphos.
Johns Hopkins APL/Olivier Barnouin

“These findings give us new insights into the ways that asteroids can change over time,” said Thomas Statler, lead scientist for Solar System Small Bodies at NASA Headquarters. “This is important not just for understanding the near-Earth objects that are the focus of planetary defense, but also for our ability to read the history of our Solar System from these remnants of planet formation. This is just part of the wealth of new knowledge we’ve gained from DART.”

Olivier Barnouin and Ronald-Louis Ballouz of Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, led a paper that analyzed the geology of both asteroids and drew conclusions about their surface materials and interior properties. From images captured by DART and its accompanying LICIACube cubesat – contributed by the Italian Space Agency (ASI), the team observed the smaller asteroid Dimorphos’ topography, which featured boulders of varying sizes. In comparison, the larger asteroid Didymos was smoother at lower elevations, though rocky at higher elevations, with more craters than Dimorphos. The authors inferred that Dimorphos likely spun off from Didymos in a large mass shedding event.

There are natural processes that can accelerate the spins of small asteroids, and there is growing evidence that these processes may be responsible for re-shaping these bodies or even forcing material to be spun off their surfaces.

Analysis suggested that both Didymos and Dimorphos have weak surface characteristics, which led the team to posit that Didymos has a surface age 40–130 times older than Dimorphos, with the former estimated to be 12.5 million years and the latter less than 300,000 years old. The low surface strength of Dimorphos likely contributed to DART’s significant impact on its orbit.

“The images and data that DART collected at the Didymos system provided a unique opportunity for a close-up geological look of a near-Earth asteroid binary system,” said Barnouin. “From these images alone, we were able to infer a great deal of information on geophysical properties of both Didymos and Dimorphos and expand our understanding on the formation of these two asteroids. We also better understand why DART was so effective in moving Dimorphos.”

Based on the internal and surface properties described in Barnouin et al. (2024), this video demonstrates how the spin-up of asteroid Didymos could have led to the growth of its equatorial ridge and the formation of the smaller asteroid Dimorphos, seen orbiting the former near the end of the clip. Particles are colored according to their speeds, with the scale shown at the top, along with the continually changing spin period of Didymos.
University of Michigan/Yun Zhang and Johns Hopkins APL/Olivier Barnouin

Maurizio Pajola, of the National Institute for Astrophysics (INAF) in Rome, and co-authors led a paper comparing the shapes and sizes of the various boulders and their distribution patterns on the two asteroids’ surfaces. They determined the physical characteristics of Dimorphos indicate it formed in stages, likely of material inherited from its parent asteroid Didymos. That conclusion reinforces the prevailing theory that some binary asteroid systems arise from shed remnants of a larger primary asteroid accumulating into a new asteroid moonlet.

Alice Lucchetti, also of INAF, and colleagues found that thermal fatigue – the gradual weakening and cracking of a material caused by heat – could rapidly break up boulders on the surface of Dimorphos, generating surface lines and altering the physical characteristics of this type of asteroid more quickly than previously thought. The DART mission was likely the first observation of such a phenomenon on this type of asteroid. 

Supervised by researcher Naomi Murdoch of ISAE-SUPAERO in Toulouse, France, and colleagues, a paper led by students Jeanne Bigot and Pauline Lombardo determined Didymos’ bearing capacity – the surface’s ability to support applied loads – to be at least 1,000 times lower than that of dry sand on Earth or lunar soil. This is considered an important parameter for understanding and predicting the response of a surface, including for the purposes of displacing an asteroid.

Colas Robin, also of ISAE-SUPAERO, and co-authors analyzed the surface boulders on Dimorphos, comparing them with those on other rubble pile asteroids, including ItokawaRyugu, and Bennu. The researchers found the boulders shared similar characteristics, suggesting all these types of asteroids formed and evolved in a similar fashion. The team also noted that the elongated nature of the boulders around the DART impact site implies that they were likely formed through impact processing.

These latest findings form a more robust overview of the origins of the Didymos system and add to the understanding of how such planetary bodies were formed. As ESA’s (European Space Agency) Hera mission prepares to revisit DART’s collision site in 2026 to further analyze the aftermath of the first-ever planetary defense test, this research provides a series of tests for what Hera will find and contributes to current and future exploration missions while bolstering planetary defense capabilities. 

Johns Hopkins APL managed the DART mission for NASA’s Planetary Defense Coordination Office as a project of the agency’s Planetary Missions Program Office, which is at NASA’s Marshall Space Flight Center. NASA provided support for the mission from several centers, including the Jet Propulsion Laboratory, Goddard Space Flight Center, Johnson Space Center, Glenn Research Center, and Langley Research Center. 

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Fermi Finds New Feature in Brightest Gamma-Ray Burst Yet Seen

In October 2022, astronomers were stunned by what was quickly dubbed the BOAT — the brightest-of-all-time gamma-ray burst (GRB). Now an international science team reports that data from NASA’s Fermi Gamma-ray Space Telescope reveals a feature never seen before.

“A few minutes after the BOAT erupted, Fermi’s Gamma-ray Burst Monitor recorded an unusual energy peak that caught our attention,” said lead researcher Maria Edvige Ravasio at Radboud University in Nijmegen, Netherlands, and affiliated with Brera Observatory, part of INAF (the Italian National Institute of Astrophysics) in Merate, Italy. “When I first saw that signal, it gave me goosebumps. Our analysis since then shows it to be the first high-confidence emission line ever seen in 50 years of studying GRBs.”

A jet of particles moving at nearly light speed emerges from a massive star in this artist’s concept. The star’s core ran out of fuel and collapsed into a black hole. Some of the matter swirling toward the black hole was redirected into dual jets firing in opposite directions. We see a gamma-ray burst when one of these jets happens to point directly at Earth.
A jet of particles moving at nearly light speed emerges from a massive star in this artist’s concept. The star’s core ran out of fuel and collapsed into a black hole. Some of the matter swirling toward the black hole was redirected into dual jets firing in opposite directions. We see a gamma-ray burst when one of these jets happens to point directly at Earth.
NASA

paper about the discovery appears in the July 26 edition of the journal Science.

When matter interacts with light, the energy can be absorbed and reemitted in characteristic ways. These interactions can brighten or dim particular colors (or energies), producing key features visible when the light is spread out, rainbow-like, in a spectrum. These features can reveal a wealth of information, such as the chemical elements involved in the interaction. At higher energies, spectral features can uncover specific particle processes, such as matter and antimatter annihilating to produce gamma rays.

“While some previous studies have reported possible evidence for absorption and emission features in other GRBs, subsequent scrutiny revealed that all of these could just be statistical fluctuations. What we see in the BOAT is different,” said coauthor Om Sharan Salafia at INAF-Brera Observatory in Milan, Italy. “We’ve determined that the odds this feature is just a noise fluctuation are less than one chance in half a billion.”

GRBs are the most powerful explosions in the cosmos and emit copious amounts of gamma rays, the highest-energy form of light. The most common type occurs when the core of a massive star exhausts its fuel, collapses, and forms a rapidly spinning black hole. Matter falling into the black hole powers oppositely directed particle jets that blast through the star’s outer layers at nearly the speed of light. We detect GRBs when one of these jets points almost directly toward Earth.

The BOAT, formally known as GRB 221009A, erupted Oct. 9, 2022, and promptly saturated most of the gamma-ray detectors in orbit, including those on Fermi. This prevented them from measuring the most intense part of the blast. Reconstructed observations, coupled with statistical arguments, suggest the BOAT, if part of the same population as previously detected GRBs, was likely the brightest burst to appear in Earth’s skies in 10,000 years.

The brightest gamma-ray burst yet recorded gave scientists a new high-energy feature to study. Learn what NASA’s Fermi mission saw, and what this feature may be telling us about the burst’s light-speed jets. (NASA’s Goddard Space Flight Center)

The putative emission line appears almost 5 minutes after the burst was detected and well after it had dimmed enough to end saturation effects for Fermi. The line persisted for at least 40 seconds, and the emission reached a peak energy of about 12 MeV (million electron volts). For comparison, the energy of visible light ranges from 2 to 3 electron volts.

So what produced this spectral feature? The team thinks the most likely source is the annihilation of electrons and their antimatter counterparts, positrons.

“When an electron and a positron collide, they annihilate, producing a pair of gamma rays with an energy of 0.511 MeV,” said coauthor Gor Oganesyan at Gran Sasso Science Institute and Gran Sasso National Laboratory in L’Aquila, Italy. “Because we’re looking into the jet, where matter is moving at near light speed, this emission becomes greatly blueshifted and pushed toward much higher energies.”

If this interpretation is correct, to produce an emission line peaking at 12 MeV, the annihilating particles had to have been moving toward us at about 99.9% the speed of light.

“After decades of studying these incredible cosmic explosions, we still don’t understand the details of how these jets work,” noted Elizabeth Hays, the Fermi project scientist at NASA’s Goddard Space Flight Center. “Finding clues like this remarkable emission line will help scientists investigate this extreme environment more deeply.” 

The Fermi Gamma-ray Space Telescope is an astrophysics and particle physics partnership managed by Goddard. Fermi was developed in collaboration with the U.S. Department of Energy, with important contributions from academic institutions and partners in France, Germany, Italy, Japan, Sweden, and the United States.

NASA’s Marshall Space Flight Center is responsible for one of the instruments on the Fermi Gamma-ray Space Telescope – the Gamma-ray Burst Monitor, or GBM. The GBM studies gamma-ray bursts, the most powerful explosions in the universe, as well as other flashes of gamma rays. The GBM sees these bursts across the entire sky, and scientists are using its observations to learn more about the universe.

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      CAPSTONE revealed in lunar Sunrise: CAPSTONE will fly in cislunar space – the orbital space near and around the Moon. The mission will demonstrate an innovative spacecraft-to-spacecraft navigation solution at the Moon from a near rectilinear halo orbit slated for Artemis’ Gateway.Illustration credit: NASA Ames/Daniel Rutter The microwave sized CubeSat, CAPSTONE, continues to fly in a cis-lunar near rectilinear halo orbit after launching in 2022. Flying in this unique orbit continues to pave the way for future spacecraft and Gateway, a Moon-orbiting outpost that is part of NASA’s Artemis campaign, as the team continues to collect data. 

      NASA Moves Drone Package Delivery Industry Closer to Reality 

      A drone is shown flying during a test of Unmanned Aircraft Systems Traffic Management (UTM) technical capability Level 2 (TCL2) at Reno-Stead Airport, Nevada in 2016. During the test, five drones simultaneously crossed paths, separated by different altitudes. Two drones flew beyond visual line of sight and three flew within line-of-sight of their operators. More UTM research followed, and it continues today. Image credit: NASA Ames/Dominic Hart NASA’s uncrewed aircraft system traffic management concepts paved the way for newly-approved package delivery drone flights in the Dallas area. 

      NASA’s uncrewed aircraft system traffic management concepts paved the way for newly-approved package delivery drone flights in the Dallas area. 

      NASA Technologies Streamline Air Traffic Management Systems 

      This image shows an aviation version of a smartphone navigation app that makes suggestions for an aircraft to fly an alternate, more efficient route. The new trajectories are based on information available from NASA’s Digital Information Platform and processed by the Collaborative Departure Digital Rerouting tool.Illustration credit: NASA Managing our busy airspace is a complex and important issue, ensuring reliable and efficient movement of commercial and public air traffic as well as autonomous vehicles. NASA, in partnership with AeroVironment and Aerostar, demonstrated a first-of-its-kind air traffic management concept that could pave the way for aircraft to safely operate at higher altitudes. The agency also saw continued fuel savings and reduction in commercial flight delays at Dallas Fort-Worth Airport, thanks to a NASA-developed tool that allows flight coordinators to identify more efficient, alternative takeoff routes.

      Small Spacecraft Gathers Big Solar Storm Data from Deep Space 

      Illustration of NASA’s BioSentinel spacecraft as it enters a heliocentric orbit.Illustration credit: NASA Ames/Daniel Rutter BioSentinel – a small satellite about the size of a cereal box – is currently more than 30 million miles from Earth, orbiting our Sun. After launching aboard NASA’s Artemis I more than two years ago, BioSentinel continues to collect valuable information for scientists trying to understand how solar radiation storms move through space and where their effects – and potential impacts on life beyond Earth – are most intense. In May 2024, the satellite was exposed to a coronal mass ejection without the protection of our planet’s magnetic field and gathered measurements of hazardous solar particles in deep space during a solar storm. 

      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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