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By NASA
30 Min Read The Marshall Star for July 3, 2024
11 Marshall Team Members, 5 Teams Awarded in Space Flight Awareness Ceremony
By Jessica Barnett
Sixteen individuals and groups from across NASA’s Marshall Space Flight Center were recognized June 27 for going above and beyond in their support of the human space program.
Marshall Deputy Director Rae Ann Meyer presented the awards during a special Space Flight Awareness ceremony in Activities Building 4316.
NASA’s Marshall Space Flight Center Deputy Director Rae Ann Meyer speaks to audience members and award winners at the Space Flight Awareness awards ceremony held June 27 in Activities Building 4316. In all, 11 Marshall team members were presented with SFA Trailblazer or Management awards, while five teams were presented with SFA Team Awards. NASA/Charles Beason “I am honored to be part of Marshall’s talented and dedicated workforce, with all we accomplish,” Meyer said. “Celebrating your commitment to keeping our astronauts and our missions safe through your daily work is a true joy. Your ability to innovate, lead, and manage successful teams is inspiring.”
Of the 16 awards presented, nine were awarded to SFA Trailblazers. These individuals, each in the early stages of their career, demonstrate a strong work ethic and creative, innovative thinking in support of human spaceflight.
Two Marshall team members received the SFA Management Award, which aims to recognize mid-level managers who consistently demonstrate loyalty, empowerment, accountability, diversity, excellence, respect, sharing, honesty, integrity, and proactivity.
In addition, five teams received the SFA Teams Award in recognition of their exemplary teamwork while accomplishing a particular task or goal in support of the human space program.
The full list of winners is below:
Trailblazers
Josie Blocker Savannah Bullard Austin Lee Kaitlin Oliver-Butler Nicholas Olson Elvis Popov Gwyer Sinclair Timothy Wray William Till Management
Jennifer Franzo John Sharp Teams
Safety Mission Assurance Software Assurance Launch Support Team, Artemis I Team SLS (Space Launch System) Engineering Imagery Team Mars Ascent Vehicle Verification and Validation Team SLS Coupled Loads Analysis Team ECLSS (Environmental Control and Life Support Systems) Flight Systems Design and Analysis Team The SFA Trailblazer, Management, and Team awards are three of eight awards presented annually by Space Flight Awareness. Additional information, including eligibility criteria, can be found here.
Barnett, a Media Fusion employee, supports the Marshall Office of Communications.
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Marshall’s Hot Gas Facility, Team Provide Critical Testing Capability
By Wayne Smith
The Hot Gas Facility at NASA’s Marshall Space Flight Center can really take the heat – up to 3,000 degrees Fahrenheit – creating a test environment geared for making human space exploration safer.
Mitigating human risk and returning Artemis II astronauts safely to Earth is paramount as NASA prepares for its first crewed mission aboard the Space Launch System to the Moon in more than 50 years. Engineers use the Marshall facility to simulate launch conditions for testing SLS hardware, the TPS (thermal protection system), and other materials in a Mach 4 environment – four times the speed of sound.
The Hot Gas Facility at NASA’s Marshall Space Flight Center is a unique, world-class gaseous hydrogen/air combustion-driven wind tunnel used primarily for Thermal Protection System testing and aerothermal definition. NASA “At NASA, we live on the idea of ‘test like you fly,’” said Malik Thompson, Commercial Crew TPS subsystem manager. “It’s very difficult to replicate the entirety of space and the environment that gets you there. It’s a unique capability – and the only one in the entire world.”
The current Hot Gas Facility has been in service for 37-plus years and has completed more than 27,000 hot firings. It was built to develop, characterize, and qualify TPS materials for flight vehicles, but has proven to be invaluable for addressing in-flight anomalies and performing material and instrumentation studies. It has qualified materials for NASA crewed and uncrewed flight vehicles, as well as for Department of Defense and commercial vehicles.
During tests, combustion products are expanded from the combustion chamber through a two-dimensional nozzle into a 16×16 inch test section. A Mach 4 flow environment is induced, along with heating rates up to 3,000 degrees Fahrenheit. It can induce convective and radiant heating simultaneously to accurately simulate flight conditions during ascent. The facility has 512 channels of instrumentation to support a variety of engineering measurements and test scenarios.
The facility’s flexibility, and its innovative and experienced crew members, means NASA can accomplish testing more quickly and at considerably less cost when compared to large national test facilities.
“Conditions and configurations can be adjusted during a test program to address issues as they arise,” said Greg Vinyard, a Marshall engineer who has worked 38 years at the facility. “This flexibility is valuable for small and large-scale research and development programs. The experienced crew adds to the unique capability, working with customers to provide innovative methods to address the requirements of a test program and maximize the results of the testing.”
The facility served as the benchmark for the recession characteristics of space shuttle TPS materials and historically has been “the acid test” – if a material survives the Hot Gas Facility environments, the material will survive flight environments.
“Freeing a launch vehicle from the surface of Earth is a huge part of space travel, and you need a lot of acceleration speed to escape gravity,” Thompson said. “It’s something you can’t replicate very easily, but the Hot Gas Facility is so much more than a wind tunnel. The high temperature aspect of testing is very important, and the ability to adjust to fit various launch environments.”
The facility’s legacy stretches from the Space Shuttle Program to the International Space Station and now Artemis. Artemis II will carry a crew of four around the Moon to confirm systems operate as designed in the deep space environment. The mission will pave the way to way for lunar surface missions, establish long-term lunar science and exploration capabilities, and inspire the next generation of explorers.
The Hot Gas Facility validates critical safety measures for the mission, with testing primarily focused on TPS, spray-on foam insulation, and other materials protecting the SLS (Space Launch System) rocket and the Orion spacecraft.
“These are crewed missions,” Thompson said. “Mitigating and understanding risks as much as possible is part of the job. Getting these materials in these environments to make sure they are capable of withstanding and still performing is important.”
A prime example of the facility’s capability was 2022 testing for the Human Exploration Development and Operations Office for the Commercial Crew Program. A joint test series with SpaceX, proposed by Thompson, was a seven-month campaign with launch vehicles that would carry astronauts to and from the space station, with 185 test runs.
“We set up a test campaign that would allow us to find a way to test components and materials for multiple flights and have a safe vehicle for a crewed flight,” Thompson said.
Hot Gas Facility, where their motto is “how hot and how long,” has operated at Marshall since 1971, evolving over the years to incorporate lessons learned from previous designs. “Testing here focuses on improving TPS design to make it safer for astronauts,” Thompson said. “Astronauts do the hard work in space. The testing we do on the ground informs the decisions we make to get them there safely. Capabilities like those we have at the Hot Gas Facility are our primary tool for preparing for the unknown.”
Smith, a Media Fusion employee and the Marshall Star editor, supports the Marshall Office of Communications.
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NASA Announces Winners of Inaugural Human Lander Challenge
NASA’s 2024 Human Lander Challenge (HuLC) Forum brought 12 university teams from across the United States to Huntsville, near the agency’s Marshall Space Flight Center, to showcase their innovative concepts for addressing the complex issue of managing lunar dust. The 12 finalists, selected in March 2024, presented their final presentations to a panel of NASA and industry experts from NASA’s Human Landing Systems Program at the HuLC Forum in Huntsville June 25-27.
Twelve university teams gathered in Huntsville, near NASA’s Marshall Space Flight Center, June 25-27, to participate in the final round of NASA’s 2024 Human Lander Challenge (HuLC) Forum.NASA/Ken Hall NASA’s lunar exploration campaign Artemis is working to send the first woman, first person of color, and first international partner astronaut to the Moon and establish long-term lunar science and exploration capabilities. Dust mitigation during landing is one of the key challenges NASA and its Artemis partners will have to address in exploring the lunar South Pole region and establishing a long-term human presence on the Moon. Participants in the 2024 Human Lander Challenge developed proposed systems-level solutions that could be potentially implemented within the next 3-5 years to manage or prevent clouds of dust – called lunar plume surface interaction – that form as a spacecraft touches down on the Moon.
NASA announced the University of Michigan team, with their project titled, “ARC-LIGHT: Algorithm for Robust Characterization of Lunar Surface Imaging for Ground Hazards and Trajectory” as the selected overall winner and recipient of a $10,000 award June 27.
The University of Illinois, Urbana-Champaign took second place and a $5,000 award with their project, “HINDER: Holistic Integration of Navigational Dynamics for Erosion Reduction,” followed by University of Colorado Boulder for their project, “Lunar Surface Assessment Tool (LSAT): A Simulation of Lunar Dust Dynamics for Risk Analysis,” and a $3,000 award.
“Managing and reducing the threat of lunar dust is a formidable challenge to NASA and we are committed to real solutions for our long long-term presence on the Moon’s surface,” said Don Krupp, associate program manager for the HLS Program at Marshall. “A key part of NASA’s mission is to build the next generation of explorers and expand our partnerships across commercial industry and the academic community to advance HLS technologies, concepts, and approaches. The Human Lander Challenge is a great example of our unique partnership with the academic community as they help provide innovative and real solutions to the unique risks and challenges of returning to the Moon.”
NASA selected the University of Michigan as the overall winner of NASA’s 2024 Human Lander Challenge (HuLC) Forum.NASA/Ken Hall Two teams received the excellence in systems engineering award:
Texas A&M University, “Synthetic Orbital Landing Area for Crater Elimination (SOLACE) Embry-Riddle Aeronautical University, Prescott, “Plume Additive for Reducing Surface Ejecta and Cratering (PARSEC) “The caliber of solutions presented by the finalist teams to address the challenges of lunar-plume surface interaction is truly commendable,” said Esther Lee, HuLC judging panel chair and aerospace engineer at NASA’s Langley Research Center. “Witnessing the development of these concepts is an exciting glimpse into the promising future of aerospace leadership. It’s inspiring to see so many brilliant minds coming together to solve the challenges of lunar landings and exploration. We may all come from different educational backgrounds, but our shared passion for space unites us.”
Student and faculty advisor participants had the opportunity to network and interact with NASA and industry subject matter experts who are actively working on NASA’s Human Landing System capabilities giving participants a unique insight to careers and operations that further the Agency’s mission of human space exploration.
NASA’s Human Lander Challenge is sponsored by Human Landing System Program and managed by the National Institute of Aerospace.
Learn more about NASA Exploration Systems Development Mission Directorate.
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Six Adapters for Crewed Artemis Flights Tested, Built at Marshall
As a child learning about basic engineering, you probably tried and failed to join a square-shaped toy with a circular-shaped toy: you needed a third shape to act as an adapter and connect them both together. On a much larger scale, integration of NASA’s powerful SLS (Space Launch System) rocket and the Orion spacecraft for the agency’s Artemis campaign would not be possible without the adapters being built, tested, and refined at NASA’s Marshall Space Flight Center.
Six adapters for the next of NASA’s SLS (Space Launch System) rockets for Artemis II through Artemis IV are currently at NASA’s Marshall Space Flight Center. Engineers are analyzing data and applying lessons learned from extensive in-house testing and the successful uncrewed Artemis I test flight to improve future iterations of the rocket.NASA/Sam Lott Marshall is currently home to six adapters designed to connect SLS’s upper stages with the core stages and propulsion systems for future Artemis flights to the Moon.
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 with the assistance of the interim cryogenic propulsion stage. The propulsion stage is sandwiched between two adapters: the launch vehicle stage adapter and the Orion stage adapter.
The cone-shaped launch vehicle stage adapter provides structural strength and protects the rocket’s flight computers and other delicate systems from acoustic, thermal, and vibration effects.
“The inside of the launch vehicle stage adapter for the SLS rocket uses orthogrid machining – also known as waffle pattern machining,” said Keith Higginbotham, launch vehicle stage adapter hardware manager supporting the SLS Spacecraft/Payload Integration & Evolution Office at Marshall. “The aluminum alloy plus the grid pattern is lightweight but also very strong.”
Following the first flight of SLS with Artemis I, technicians adjusted their approach to assembling the launch vehicle stage adapter by introducing the use of a rounding tool to ensure that no unintended forces are placed on the hardware.NASA/Sam Lott The launch vehicle stage adapter for Artemis II is at Marshall and ready for shipment to NASA’s Kennedy Space Center, while engineering teams are completing outfitting and integration work on the launch vehicle stage adapter for Artemis III. These cone-shaped adapters differ from their Artemis I counterpart, featuring additional avionics protection for crew safety.
Just a few buildings over, the Orion stage adapter for Artemis II, with its unique docking target that mimics the target on the interim cryogenic propulsion stage to test Orion’s handling during the piloting demonstration test, is in final outfitting prior to shipment to Kennedy for launch preparations. The five-foot-tall, ring-shaped adapter is small but mighty: in addition to having space to accommodate small secondary payloads, it contains a diaphragm that acts as a barrier to prevent gases generated during launch from entering Orion.
The Artemis III Orion stage adapter’s major structure is complete and its avionics unit and diaphragm will be installed later this year.
The Orion stage adapter is complete at Marshall, including welding, painting, and installation of the secondary payload brackets, cables, and avionics unit. The adapter is protected by a special conductive paint that prevents electric arcing in space. NASA astronauts Reid Wiseman and Christina Koch viewed the hardware during a Nov. 27 visit to Marshall.NASA/Charles Beason Beginning with Artemis IV, a new configuration of SLS, the SLS Block 1B, will use the new, more powerful exploration upper stage to enable more ambitious missions to deep space. The new stage requires new adapters.
The cone-shaped payload adapter – containing two aluminum rings and eight composite panels made from a graphite epoxy material – will be housed inside the universal stage adapter atop the rocket’s exploration upper stage.
The payload adapter test article is being twisted, shaken, and placed under extreme pressure to check its structural strength as part of testing at Marshall. Engineers are making minor changes to the design of the flight article, such as the removal of certain vent holes, based on the latest analyses.
SLS Block 1B’s payload adapter is an evolution from the Orion stage adapter used in the Block 1 configuration, but each will be unique and customized to fit individual mission needs. “Both the Orion stage adapter and the payload adapter are being assembled in the same room at Marshall,” said Brent Gaddes, lead for the Orion stage adapter in the Spacecraft/Payload Integration & Evolution Office at Marshall. “So, there’s a lot of cross-pollination between teams.”NASA/Sam Lott The sixth adapter at Marshall is a development test article of the universal stage adapter, which will be the largest composite structure from human spaceflight missions ever flown at 27.5 feet in diameter and 32 feet long. It is currently undergoing modal and structural testing to ensure it is light, strong, and ready to connect SLS Block 1B’s exploration upper stage to Orion.
“Every pound of structure is equal to a pound of payload,” says Tom Krivanek, universal stage adapter sub-element project manager at NASA’s Glenn Research Center. Glenn manages the adapter for the agency. “That’s why it’s so valuable that the universal stage adapter be as light as possible. The universal stage adapter separates after the translunar insertion, so NASA will need to demonstrate the ability to separate cleanly in orbit in very cold conditions.”
With its multipurpose testing equipment, innovative manufacturing processes, and large-scale integration facilities, Marshall facilities and capabilities enable teams to process composite hardware elements for multiple Artemis missions in parallel, providing for cost and schedule savings.
Unlike the flight hardware, the universal stage adapter’s development test article has flaws intentionally included in its design to test if fracture toughness predictions are correct. Technicians are incorporating changes for the next test article, including alterations to the vehicle damping system mitigating vibrations on the launch pad.NASA/Brandon Hancock Lessons learned from testing and manufacturing hardware for the first three SLS flights in the Block 1 configuration have aided in designing and integrating the SLS Block 1B configuration.
Both adapters for the SLS Block 1 are manufactured using friction stir welding in Marshall’s Materials and Processes Laboratory, a process that very reliably produces materials that are typically free of flaws.
Pioneering techniques such as determinant assembly and digital tooling ensure an efficient and uniform manufacturing process and save NASA and its partners money and time when building Block 1B’s payload adapter. Structured light scanning maps each panel and ring individually to create a digital model informing technicians where holes should be drilled.
“Once the holes are put in with a hand drill located by structured light, it’s simply a matter of holding the pieces together and dropping fasteners in place,” Gaddes said. “It’s kind of like an erector set.”
From erector sets to the Moon and beyond – the principles of engineering are the same no matter what you are building.
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Juno Gets a Close-Up Look at Lava Lakes on Jupiter’s Moon Io
New findings from NASA’s Juno probe provide a fuller picture of how widespread the lava lakes are on Jupiter’s moon Io and include first-time insights into the volcanic processes at work there. These results come courtesy of Juno’s Jovian Infrared Auroral Mapper (JIRAM) instrument, contributed by the Italian Space Agency, which “sees” in infrared light. Researchers published a paper on Juno’s most recent volcanic discoveries on June 20 in the journal Nature Communications Earth and Environment.
The JunoCam instrument aboard NASA’s Juno spacecraft captured two volcanic plumes rising above the horizon of Jupiter’s moon Io. The image was taken Feb. 3 from a distance of about 2,400 miles.Image data: NASA/JPL-Caltech/SwRI/MSSS, Image processing by Andrea Luck (CC BY) Io has intrigued the astronomers since 1610, when Galileo Galilei first discovered the Jovian moon, which is slightly larger than Earth’s Moon. Some 369 years later, NASA’s Voyager 1 spacecraft captured a volcanic eruption on the moon. Subsequent missions to Jupiter, with more Io flybys, discovered additional plumes – along with lava lakes. Scientists now believe Io, which is stretched and squeezed like an accordion by neighboring moons and massive Jupiter itself, is the most volcanically active world in the solar system. But while there are many theories on the types of volcanic eruptions across the surface of the moon, little supporting data exists.
In both May and October 2023, Juno flew by Io, coming within about 21,700 miles and 8,100 miles, respectively. Among Juno’s instruments getting a good look at the beguiling moon was JIRAM.
Designed to capture the infrared light (which is not visible to the human eye) emerging from deep inside Jupiter, JIRAM probes the weather layer down to 30 to 45 miles below the gas giant’s cloud tops. But during Juno’s extended mission, the mission team has also used the instrument to study the moons Io, Europa, Ganymede, and Callisto. The JIRAM Io imagery showed the presence of bright rings surrounding the floors of numerous hot spots.
“The high spatial resolution of JIRAM’s infrared images, combined with the favorable position of Juno during the flybys, revealed that the whole surface of Io is covered by lava lakes contained in caldera-like features,” said Alessandro Mura, a Juno co-investigator from the National Institute for Astrophysics in Rome. “In the region of Io’s surface in which we have the most complete data, we estimate about 3% of it is covered by one of these molten lava lakes.” (A caldera is a large depression formed when a volcano erupts and collapses.)
JIRAM’s Io flyby data not only highlights the moon’s abundant lava reserves, but also provides a glimpse of what may be going on below the surface. Infrared images of several Io lava lakes show a thin circle of lava at the border, between the central crust that covers most of the lava lake and the lake’s walls. Recycling of melt is implied by the lack of lava flows on and beyond the rim of the lake, indicating that there is a balance between melt that has erupted into the lava lakes and melt that is circulated back into the subsurface system.
Infrared data collected Oct. 15, 2023, by the JIRAM instrument aboard NASA’s Juno shows Chors Patera, a lava lake on Jupiter’s moon Io. The team believes the lake is largely covered by a thick, molten crust, with a hot ring around the edges where lava from Io’s interior is directly exposed to space.NASA/JPL-Caltech/SwRI/ASI/INAF/JIRAM/MSSS “We now have an idea of what is the most frequent type of volcanism on Io: enormous lakes of lava where magma goes up and down,” Mura said. “The lava crust is forced to break against the walls of the lake, forming the typical lava ring seen in Hawaiian lava lakes. The walls are likely hundreds of meters high, which explains why magma is generally not observed spilling out of the paterae” – bowl-shaped features created by volcanism – “and moving across the moon’s surface.”
JIRAM data suggests that most of the surface of these Io hot spots is composed of a rocky crust that moves up and down cyclically as one contiguous surface due to the central upwelling of magma. In this hypothesis, because the crust touches the lake’s walls, friction keeps it from sliding, causing it to deform and eventually break, exposing lava just below the surface.
An alternative hypothesis remains in play: Magma is welling up in the middle of the lake, spreading out and forming a crust that sinks along the rim of the lake, exposing lava.
“We are just starting to wade into the JIRAM results from the close flybys of Io in December 2023 and February 2024,” said Scott Bolton, principal investigator for Juno at the Southwest Research Institute in San Antonio. “The observations show fascinating new information on Io’s volcanic processes. Combining these new results with Juno’s longer-term campaign to monitor and map the volcanoes on Io’s never-before-seen north and south poles, JIRAM is turning out to be one of the most valuable tools to learn how this tortured world works.”
Juno executed its 62nd flyby of Jupiter – which included an Io flyby at an altitude of about 18,175 miles – on June 13. The 63rd flyby of the gas giant is scheduled for July 16.
NASA’s Jet Propulsion Laboratory, a division of Caltech in Pasadena, California, manages the Juno mission for the principal investigator, Scott Bolton, of the Southwest Research Institute in San Antonio. Juno is part of NASA’s New Frontiers Program, which is managed at NASA’s Marshall Space Flight Center for the agency’s Science Mission Directorate. The Italian Space Agency (ASI) funded the Jovian InfraRed Auroral Mapper. Lockheed Martin Space in Denver built and operates the spacecraft.
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Surprising Phosphate Finding in NASA’s OSIRIS-REx Asteroid Sample
Scientists have eagerly awaited the opportunity to dig into the 4.3-ounce (121.6-gram) pristine asteroid Bennu sample collected by NASA’s OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, and Security – Regolith Explorer) mission since it was delivered to Earth last fall. They hoped the material would hold secrets of the solar system’s past and the prebiotic chemistry that might have led to the origin of life on Earth. An early analysis of the Bennu sample, published June 26 in Meteoritics & Planetary Science, demonstrates this excitement was warranted.
A tiny fraction of the asteroid Bennu sample returned by NASA’s OSIRIS-REx mission, shown in microscope images. The top-left pane shows a dark Bennu particle, about a millimeter long, with an outer crust of bright phosphate. The other three panels show progressively zoomed-in views of a fragment of the particle that split off along a bright vein containing phosphate, captured by a scanning electron microscope.From Lauretta & Connolly et al. (2024) Meteoritics & Planetary Science, doi:10.1111/maps.14227. The OSIRIS-REx Sample Analysis Team found that Bennu contains the original ingredients that formed our solar system. The asteroid’s dust is rich in carbon and nitrogen, as well as organic compounds, all of which are essential components for life as we know it. The sample also contains magnesium-sodium phosphate, which was a surprise to the research team, because it wasn’t seen in the remote sensing data collected by the spacecraft at Bennu. Its presence in the sample hints that the asteroid could have splintered off from a long-gone, tiny, primitive ocean world.
Analysis of the Bennu sample unveiled intriguing insights into the asteroid’s composition. Dominated by clay minerals, particularly serpentine, the sample mirrors the type of rock found at mid-ocean ridges on Earth, where material from the mantle, the layer beneath Earth’s crust, encounters water.
This interaction doesn’t just result in clay formation; it also gives rise to a variety of minerals like carbonates, iron oxides, and iron sulfides. But the most unexpected discovery is the presence of water-soluble phosphates. These compounds are components of biochemistry for all known life on Earth today.
While a similar phosphate was found in the asteroid Ryugu sample delivered by JAXA’s (Japan Aerospace Exploration Agency) Hayabusa2 mission in 2020, the magnesium-sodium phosphate detected in the Bennu sample stands out for its purity – that is, the lack of other materials in the mineral – and the size of its grains, unprecedented in any meteorite sample.
The finding of magnesium-sodium phosphates in the Bennu sample raises questions about the geochemical processes that concentrated these elements and provides valuable clues about Bennu’s historic conditions.
“The presence and state of phosphates, along with other elements and compounds on Bennu, suggest a watery past for the asteroid,” said Dante Lauretta, co-lead author of the paper and principal investigator for OSIRIS-REx at the University of Arizona, Tucson. “Bennu potentially could have once been part of a wetter world. Although, this hypothesis requires further investigation.”
“OSIRIS-REx gave us exactly what we hoped: a large pristine asteroid sample rich in nitrogen and carbon from a formerly wet world,” said Jason Dworkin, a co-author on the paper and the OSIRIS-REx project scientist at NASA’s Goddard Space Flight Center.
Despite its possible history of interaction with water, Bennu remains a chemically primitive asteroid, with elemental proportions closely resembling those of the Sun.
“The sample we returned is the largest reservoir of unaltered asteroid material on Earth right now,” Lauretta said.
This composition offers a glimpse into the early days of our solar system, over 4.5 billion years ago. These rocks have retained their original state, having neither melted nor resolidified since their inception, affirming their ancient origins.
The team has confirmed the asteroid is rich in carbon and nitrogen. These elements are crucial in understanding the environments where Bennu’s materials originated and the chemical processes that transformed simple elements into complex molecules, potentially laying the groundwork for life on Earth.
“These findings underscore the importance of collecting and studying material from asteroids like Bennu – especially low-density material that would typically burn up upon entering Earth’s atmosphere,” Lauretta said. “This material holds the key to unraveling the intricate processes of solar system formation and the prebiotic chemistry that could have contributed to life emerging on Earth.”
Dozens more labs in the United States and around the world will receive portions of the Bennu sample from NASA’s Johnson Space Center in the coming months, and many more scientific papers describing analyses of the Bennu sample are expected in the next few years from the OSIRIS-REx Sample Analysis Team.
“The Bennu samples are tantalizingly beautiful extraterrestrial rocks,” said Harold Connolly, co-lead author on the paper and OSIRIS-REx mission sample scientist at Rowan University in Glassboro, New Jersey. “Each week, analysis by the OSIRIS-REx Sample Analysis Team provides new and sometimes surprising findings that are helping place important constraints on the origin and evolution of Earth-like planets.”
Launched on Sept. 8, 2016, the OSIRIS-REx spacecraft traveled to near-Earth asteroid Bennu and collected a sample of rocks and dust from the surface. OSIRIS-REx, the first U.S. mission to collect a sample from an asteroid, delivered the sample to Earth on Sept. 24, 2023.
NASA’s Goddard Space Flight Center provided overall mission management, systems engineering, and the safety and mission assurance for OSIRIS-REx. Dante Lauretta of the University of Arizona, Tucson, is the principal investigator. The university leads the science team and the mission’s science observation planning and data processing. Lockheed Martin Space in Littleton, Colorado, built the spacecraft and provided flight operations. Goddard and KinetX Aerospace were responsible for navigating the OSIRIS-REx spacecraft. Curation for OSIRIS-REx takes place at NASA Johnson. International partnerships on this mission include the OSIRIS-REx Laser Altimeter instrument from CSA (Canadian Space Agency) and asteroid sample science collaboration with JAXA’s Hayabusa2 mission. OSIRIS-REx is the third mission in NASA’s New Frontiers Program, managed by NASA’s Marshall Space Flight Center for the agency’s Science Mission Directorate.
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Webb Captures Celestial Fireworks Around Forming Star
The cosmos seems to come alive with a crackling explosion of pyrotechnics in this new image from NASA’s James Webb Space Telescope. Taken with Webb’s MIRI (Mid-Infrared Instrument), this fiery hourglass marks the scene of a very young object in the process of becoming a star. A central protostar grows in the neck of the hourglass, accumulating material from a thin protoplanetary disk, seen edge-on as a dark line.
L1527, shown in this image from NASA’s James Webb Space Telescope’s MIRI (Mid-Infrared Instrument), is a molecular cloud that harbors a protostar. It resides about 460 light-years from Earth in the constellation Taurus. The more diffuse blue light and the filamentary structures in the image come from organic compounds known as polycyclic aromatic hydrocarbons (PAHs), while the red at the center of this image is an energized, thick layer of gases and dust that surrounds the protostar. The region in between, which shows up in white, is a mixture of PAHs, ionized gas, and other molecules. This image includes filters representing 7.7 microns light as blue, 12.8 microns light as green, and 18 microns light as red. NASA, ESA, CSA, STScI The protostar, a relatively young object of about 100,000 years, is still surrounded by its parent molecular cloud, or large region of gas and dust. Webb’s previous observation of L1527, with NIRCam (Near-Infrared Camera), allowed us to peer into this region and revealed this molecular cloud and protostar in opaque, vibrant colors.
Both NIRCam and MIRI show the effects of outflows, which are emitted in opposite directions along the protostar’s rotation axis as the object consumes gas and dust from the surrounding cloud. These outflows take the form of bow shocks to the surrounding molecular cloud, which appear as filamentary structures throughout. They are also responsible for carving the bright hourglass structure within the molecular cloud as they energize, or excite, the surrounding matter and cause the regions above and below it to glow. This creates an effect reminiscent of fireworks brightening a cloudy night sky. Unlike NIRCam, however, which mostly shows the light that is reflected off dust, MIRI provides a look into how these outflows affect the region’s thickest dust and gases.
The areas colored here in blue, which encompass most of the hourglass, show mostly carbonaceous molecules known as polycyclic aromatic hydrocarbons. The protostar itself and the dense blanket of dust and a mixture of gases that surround it are represented in red. (The sparkler-like red extensions are an artifact of the telescope’s optics). In between, MIRI reveals a white region directly above and below the protostar, which doesn’t show as strongly in the NIRCam view. This region is a mixture of hydrocarbons, ionized neon, and thick dust, which shows that the protostar propels this matter quite far away from it as it messily consumes material from its disk.
As the protostar continues to age and release energetic jets, it’ll consume, destroy, and push away much of this molecular cloud, and many of the structures we see here will begin to fade. Eventually, once it finishes gathering mass, this impressive display will end, and the star itself will become more apparent, even to our visible-light telescopes.
The combination of analyses from both the near-infrared and mid-infrared views reveal the overall behavior of this system, including how the central protostar is affecting the surrounding region. Other stars in Taurus, the star-forming region where L1527 resides, are forming just like this, which could lead to other molecular clouds being disrupted and either preventing new stars from forming or catalyzing their development.
The James Webb Space Telescope is the world’s premier space science observatory. Webb is solving mysteries in our solar system, looking beyond to distant worlds around other stars, and probing the mysterious structures and origins of our universe and our place in it. Webb is an international program led by NASA with its partners, ESA (European Space Agency) and CSA (Canadian Space Agency). Several NASA centers contributed to the project, including NASA’s Marshall Space Flight Center.
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Enhancing Decision-Making with NASA SPoRT: From Earth Science to Action
By Paola Pinto
During summer months, lightning-related injuries and fatalities rise mainly because of the increase in outdoor activities. Staying informed and cautious is crucial to ensure safety during these times. That is why making timely decisions and preventing potential hazards using tools like the Stoplight Product from NASA’s Short-term Prediction Research and Transition (SPoRT) Center is so important.
Fatal lightning incidents by month according to the National Lightning Safety Council. NASA/National Lightning Safety Council For instance, at last year’s Rock the South concert in Cullman, Alabama, the National Weather Service (NWS) in Huntsville used the Stoplight Product to effectively communicate the lightning threat to concert emergency managers, demonstrating its practical application in safeguarding public events.
The popular sayings, “When thunder roars, go indoors” and “See a flash, dash inside,” are common reactive responses to severe weather. According to NOAA’s lightning safety protocols, waiting 30 minutes after the last lightning strike is recommended before resuming outdoor activities. However, tools like the Stoplight Product provide real-time lightning activity data, helping individuals and organizations make informed safety choices before weather conditions worsen. Whether for outdoor events, construction sites, or recreational activities, this product enables people to easily determine when lightning was last detected in their area, ensuring better safety and preparedness.
In collaboration with NASA Marshall Space Flight Center’s Emergency Operations Center and the National Weather Service in Huntsville, SPoRT has developed innovative tools like the Stoplight Product to empower communities and organizations to take proactive preventive measures. SPoRT’s tools are part of a broader effort to transition research findings into practical applications that benefit forecasters and communities.
Kelley Murphy, a research associate at the University of Alabama in Huntsville, frequently interacts with users to train them on how to use the NASA SPoRT Stoplight Product during convective weather events. She said the tool leverages data from the Geostationary Lightning Mapper (GLM) on NOAA’s GOES-16 satellite, which continuously monitors lightning over the United States with high resolution. The Stoplight Product visually represents recent lightning activity to help users make informed decisions about outdoor safety.
Murphy said the Stoplight Product uses GLM Flash Extent Density data to determine the age and location of lightning flashes. GLM pixels are colored based on how recently lightning occurred, creating an easy-to-interpret visual aid of lightning within the last 30 minutes. Red indicates lightning within the last 10 minutes, yellow for 10-20 minutes, and green for 20-30 minutes, with the color disappearing after 30 minutes without lightning. There is also an option for color-blind users embedded in the tool.
Kristopher White is the Applications Integration Meteorologist and senior forecaster at the Huntsville NWS office, spending half his time with NASA SPoRT. White plays a key role in transitioning research into operational use, coordinating the use of these tools within the NWS, and ensuring that forecasters are trained and equipped to utilize them effectively.
NASA SPoRT Stoplight Product visually represents recent lightning activity to help users make informed decisions about outdoor safety. NASA White said this product has received positive feedback from various NWS offices across the U.S. Forecasters have reported utilizing the tool to monitor storms and make decisions during events, emphasizing its practical value in real-world scenarios.
One forecaster from NWS Raleigh noted that they were able to warn about lightning at a 1000+ attendee event; “We were able to alert them that lightning was nearby and then gave the all-clear once it moved out of the critical area.” Another forecaster from NWS Sullivan stated, “There’s a lot of good stuff out there that we’re using to paint the picture for us and the decision-makers, but the GLM Stoplight Product has been one of our ‘go-to’s’ for assessing how long it’s been since the last flash.” This ability to provide real-time lightning information aids forecasters in relaying crucial data to emergency managers, supporting public safety efforts.
Looking ahead, the SPoRT team is working on enhancements to the Stoplight Product, incorporating ground-based lightning detection data to improve accuracy. This new version seeks to address issues such as the parallax effect, where the satellite’s perspective can slightly shift the perceived location of lightning strikes. By combining satellite and ground-based data, the improved product will offer more precise information, enhancing its utility for lightning safety.
As we move through the peak months of the lightning season – June, July, and August – tools like these become even more helpful. Murphy and White stress the value of using these resources for professional meteorologists and the public. The Stoplight Product is GPS-enabled and available in a custom viewer that can be accessed on both computers and mobile devices, allowing individuals to make safer choices when engaging in outdoor activities, particularly during the summer weather.
On their seasonal outlook, NOAA’s Climate Prediction Center suggests above-normal precipitation for much of the Southeast and Eastern Seaboard this year, which could imply increased lightning activity. This emphasizes the need for reliable tools to mitigate lightning-related risks.
Lightning Safety Awareness Week, from June 23-29, highlighted the importance of taking safety measures during peak lightning season. SPoRT’s Stoplight Product and other tools represent significant advancements in lightning detection and decision support, helping forecasters and the public stay informed and safe. As we navigate this season, utilizing these resources will be essential in reducing the impact of lightning-related hazards.
Pinto is a research associate at the University of Alabama in Huntsville, with a focus on communications, supporting NASA SPoRT.
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By NASA
ESA/Hubble & NASA, J. Tan (Chal This NASA/ESA Hubble Space Telescope image presents a visually striking collection of interstellar gas and dust. Named RCW 7, the nebula is located just over 5,300 light-years from Earth in the constellation Puppis.
Nebulae are areas rich in the raw material needed to form new stars. Under the influence of gravity, parts of these molecular clouds collapse until they coalesce into very young, developing stars, called protostars, which are still surrounded by spinning discs of leftover gas and dust. The protostars forming in RCW 7 are particularly massive, giving off strongly ionizing radiation and fierce stellar winds that transformed the nebula into a H II region.
H II regions are filled with hydrogen ions — H I refers to a normal hydrogen atom, while H II is hydrogen that lost its electron making it an ion. Ultraviolet radiation from the massive protostars excites the hydrogen in the nebula, causing it to emit light that gives this nebula its soft pinkish glow.
The Hubble data in this image came from the study of a particularly massive protostellar binary named IRAS 07299-1651, still in its glowing cocoon of gas in the curling clouds toward the top of the image. To expose this star and its siblings, astronomers used Hubble’s Wide Field Camera 3 in near-infrared light. The massive protostars in this image are brightest in ultraviolet light, but they emit plenty of infrared light too. Infrared light’s longer wavelength lets it pass through much of the gas and dust in the cloud allowing Hubble to capture it. Many of the larger-looking stars in this image are foreground stars that are not part of the nebula. Instead, they sit between the nebula and our solar system.
The creation of an H II region marks the beginning of the end for a molecular cloud like RCW 7. Within only a few million years, radiation and winds from the massive stars will gradually disperse the nebula’s gas — even more so as the most massive stars come to the end of their lives in supernova explosions. New stars in this nebula will incorporate only a fraction of the nebula’s gas, the rest will spread throughout the galaxy to eventually form new molecular clouds.
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By NASA
5 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
NASA’s 2001 Mars Odyssey orbiter captured this single image of Olympus Mons, the tallest volcano in the solar system, on March 11, 2024. Besides providing an unprecedented view of the volcano, the image helps scientists study different layers of material in the atmosphere, including clouds and dust.NASA/JPL-Caltech/ASU The 23-year-old orbiter is taking images that offer horizon-wide views of the Red Planet similar to what astronauts aboard the International Space Station see over Earth.
NASA’s longest-lived Mars robot is about to mark a new milestone on June 30: 100,000 trips around the Red Planet since launching 23 years ago. During that time, the 2001 Mars Odyssey orbiter has been mapping minerals and ice across the Martian surface, identifying landing sites for future missions, and relaying data to Earth from NASA’s rovers and landers.
Scientists recently used the orbiter’s camera to take a stunning new image of Olympus Mons, the tallest volcano in the solar system. The image is part of a continuing effort by the Odyssey team to provide high-altitude views of the planet’s horizon. (The first of these views was published in late 2023.) Similar to the perspective of Earth astronauts get aboard the International Space Station, the view enables scientists to learn more about clouds and airborne dust at Mars.
Taken on March 11, the most recent horizon image captures Olympus Mons in all its glory. With a base that sprawls across 373 miles (600 kilometers), the shield volcano rises to a height of 17 miles (27 kilometers).
“Normally we see Olympus Mons in narrow strips from above, but by turning the spacecraft toward the horizon we can see in a single image how large it looms over the landscape,” said Odyssey’s project scientist, Jeffrey Plaut of NASA’s Jet Propulsion Laboratory in Southern California, which manages the mission. “Not only is the image spectacular, it also provides us with unique science data.”
In addition to offering a freeze frame of clouds and dust, such images, when taken across many seasons, can give scientists a more detailed understanding of the Martian atmosphere.
This infographic highlights just how much data and how many images NASA’s 2001 Mars Odyssey orbiter has collected in its 23 years of operation around the Red Planet.NASA/JPL-Caltech A bluish-white band at the bottom of the atmosphere hints at how much dust was present at this location during early fall, a period when dust storms typically start kicking up. The purplish layer above that was likely due to a mixture of the planet’s red dust with some bluish water-ice clouds. Finally, toward the top of the image, a blue-green layer can be seen where water-ice clouds reach up about 31 miles (50 kilometers) into the sky.
How They Took the Picture
Named after Arthur C. Clarke’s classic science-fiction novel “2001: A Space Odyssey,” the orbiter captured the scene with a heat-sensitive camera called the Thermal Emission Imaging System, or THEMIS, which Arizona State University in Tempe built and operates. But because the camera is meant to look down at the surface, getting a horizon shot takes extra planning.
By firing thrusters located around the spacecraft, Odyssey can point THEMIS at different parts of the surface or even slowly roll over to view Mars’ tiny moons, Phobos and Deimos.
The recent horizon imaging was conceived as an experiment many years ago during the landings of NASA’s Phoenix mission in 2008 and Curiosity rover in 2012. As with other Mars landings before and after those missions touched down, Odyssey played an important role relaying data as the spacecraft barreled toward the surface.
Laura Kerber, deputy project scientist for NASA’s Mars Odyssey orbiter, explains how and why the spacecraft in May 2023 captured a view of the Red Planet similar to the International Space Station’s view of Earth.
Credit: NASA/JPL-Caltech To relay their vital engineering data to Earth, Odyssey’s antenna had to be aimed toward the newly arriving spacecraft and their landing ellipses. Scientists were intrigued when they noticed that positioning Odyssey’s antenna for the task meant that THEMIS would be pointed at the planet’s horizon.
“We just decided to turn the camera on and see how it looked,” said Odyssey’s mission operations spacecraft engineer, Steve Sanders of Lockheed Martin Space in Denver. Lockheed Martin built Odyssey and helps conduct day-to-day operations alongside the mission leads at JPL. “Based on those experiments, we designed a sequence that keeps THEMIS’ field-of-view centered on the horizon as we go around the planet.”
The Secret to a Long Space Odyssey
What’s Odyssey secret to being the longest continually active mission in orbit around a planet other than Earth?
“Physics does a lot of the hard work for us,” Sanders said. “But it’s the subtleties we have to manage again and again.”
These variables include fuel, solar power, and temperature. To ensure Odyssey uses its fuel (hydrazine gas) sparingly, engineers have to calculate how much is left since the spacecraft doesn’t have a fuel gauge. Odyssey relies on solar power to operate its instruments and electronics. This power varies when the spacecraft disappears behind Mars for about 15 minutes per orbit. And temperatures need to stay balanced for all of Odyssey’s instruments to work properly.
“It takes careful monitoring to keep a mission going this long while maintaining a historical timeline of scientific planning and execution — and innovative engineering practices,” said Odyssey’s project manager, Joseph Hunt of JPL. “We’re looking forward to collecting more great science in the years ahead.”
More about Odyssey:
https://science.nasa.gov/mission/odyssey/
News Media Contacts
Andrew Good
Jet Propulsion Laboratory, Pasadena, Calif.
818-393-2433
andrew.c.good@jpl.nasa.gov
Karen Fox / Charles Blue
NASA Headquarters, Washington
202-358-1600 / 202-802-5345
karen.c.fox@nasa.gov / charles.e.blue@nasa.gov
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Last Updated Jun 27, 2024 Related Terms
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By NASA
22 Min Read The Marshall Star for June 26, 2024
Blasting into Summer: Thousands Enjoy NASA in the Park
By Wayne Smith
It was a super Saturday in the park to celebrate space and the Rocket City.
NASA’s Marshall Space Flight Center joined Downtown Huntsville Inc. and other community partners to host NASA in the Park, a public outreach event that attracted thousands to Big Spring Park East in Huntsville on June 22.
NASA Marshall Space Flight Center Director Joseph Pelfrey, second from left, presented Huntsville Mayor Tommy Battle, third from left, with an Artemis I Certificate of Appreciation during NASA in the Park on June 22 at Huntsville’s Big Spring Park East. They are joined by Larry Leopard, Marshall associate director, technical, far left, and Rae Ann Meyer, Marshall deputy director. NASA/Charles Beason And the reach of the event may go far beyond North Alabama in the years ahead, according to Huntsville Mayor Tommy Battle.
“Marshall Space Flight Center is the soul of space exploration,” said Battle, who was presented with an Artemis I Certificate of Appreciation by Marshall Director Joseph Pelfrey at the event. “Huntsville is proud of NASA’s leadership in space, and it was exciting for locals to see all of Marshall’s cool projects on display at NASA in the Park. Seeing thousands of people, particularly young people, engaged at the event shows the enthusiasm for space and science. This event may have inspired a future astronaut or scientist who will take man back to the Moon, and one day to Mars.”
Visitors to NASA in the Park get some relief from the heat underneath shade trees surrounding the canal that runs through Big Spring Park.NASA/Charles Beason Attendees of all ages packed the park to enjoy NASA exhibits and science demonstrations, giveaways, food vendors, and live music at the event, which was from 10–2 p.m. About 14,000 people attended, according to official estimates. The greenspace in the heart of Huntsville offered a welcome respite from temperatures that reached the upper 90s on the first Saturday of summer.
An RS-25 engine display attracts visitors during NASA in the Park. The display was one of several exhibits at Big Spring Park East highlighting NASA missions.NASA/Charles Beason “Thank you to all our Marshall team members who helped make this year’s NASA in the Park a huge success,” said Marshall Director Joseph Pelfrey. “It was truly incredible to see the overwhelming support and participation we received from our partners in government, industry, academia, and the community.”
Marshall Director Joseph Pelfrey, left, interviews NFL quarterback Joshua Dobbs at NASA in the Park. In addition to his football career, Dobbs has an aerospace engineering degree and is engaged in STEM outreach through his foundation, ASTROrdinary.NASA/Charles Beason The exhibits at the park included NASA’s SLS (Space Launch System) Program, which is managed by Marshall, the RS-25 engine that will power the rocket, and the Human Landing System, which is also managed by Marshall.
Visitors to NASA in the Park participate in a game of cornhole in front of a display featuring Artemis and NASA’s SLS (Space Launch System). NASA/Charles Beason Smith, a Media Fusion employee and the Marshall Star editor, supports the Marshall Office of Communications.
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SLS Spotlight: Getting Ready for the First Crewed SLS Flights for Artemis
The featured business unit for June at NASA’s Marshall Space Flight Center is SLS. Building off the legacies of the Mercury-Redstone rocket, mighty Saturn V, and the space shuttle, teams at Marshall are preparing for the first crewed missions under the agency’s Artemis campaign with NASA’s SLS (Space Launch System) rocket. Marshall manages the SLS Program.
Marshall teams are finishing outfitting and integration work on the major adapters for the SLS Block 1 configuration that will launch Artemis II and Artemis III. Beginning with Artemis IV, SLS will evolve into a larger, more powerful configuration called Block 1B. Already, development, test, manufacturing, and operation teams across Marshall – and across the country – are readying for its debut flight.
Learn more about SLS.
Below, meet some of the Marshall teammates who are working on the mega rocket.
Structural materials engineer Lauren Fisher stands in front of the launch vehicle stage adapter for the SLS rocket. The hardware will be used for the agency’s Artemis III mission that will land astronauts on the lunar surface. Being part of the Artemis Generation is incredibly inspiring for Fisher, who takes pride in her work supporting the first three Artemis missions, including Artemis II, the first crewed mission under Artemis, in 2025. “I’m literally building the hardware that will send the first woman to deep space,” Fisher said. “Watching our rocket take shape, I’m like ‘you see that thing? I did that; that’s mine. See that one? My team did that one. We did that, and see this?’” She beams with pride. “You can do that, too. Just being a part of the generation that’s changing the workforce and changing the space program – it gives me goosebumps.” (NASA/Sam Lott)
Bruce Askins desire to explore other worlds always made him want to be an astronaut. Though he did not become an astronaut, Askins has built a 42-year career at NASA, and, as the infrastructure management lead for NASA’s SLS Program at Marshall, Askins is an integral part for the next generation of explorers. Askins and his team are the gatekeepers and protectors of data and responsible for both cybersecurity and physical security for the SLS Program. Under Askins’ leadership, his team ensures all data is stored properly, that information about the rocket shared outside NASA is done with proper data markings, and access is given to those that need it. (NASA/Sam Lott)
Casey Wolfe. Casey Wolfe, a Huntsville native, joined Marshall first as a Pathways intern in 2012. Now the assistant branch chief of the advanced manufacturing branch within the Materials and Processing Laboratory at Marshall, Wolfe and her branch support Artemis through composites and additive manufacturing work for the key elements of both the Block 1 and Block 1B SLS configurations. Wolfe led the manufacturing efforts on the composite payload adapter that will be housed inside the universal stage adapter as part of the Block 1B configuration, beginning with Artemis IV. The engineering development unit is currently undergoing structural testing in the West Test Area. “It’s an incredible feeling knowing that you are part of an effort that helps to inspire so many people,” Wolfe said. “My work has helped move the Artemis campaign forward in many different, directly helping to build and lay the foundation for the materials, processes, and manufacturing efforts that are assisting the advancement of humankind in space exploration.” (NASA/Sam Lott)
Launching a rocket to the Moon takes perseverance and diligence. Josh Whitehead – a world-class engineer, race-winning long-distance runner, and father – knows that it also takes a good attitude. “Positive energies are vital, particularly when working through challenges,” Whitehead said. “Challenges are opportunities to learn and grow. There’s always more than one way; always more than one solution.” Whitehead’s job as the associate manager for the SLS Stages Office supports design, development, certification, and operation of the 212-foot-tall SLS core stage. The massive core stage with two propellant tanks that collectively hold more than 733,000 gallons of super-cold propellant is one of the largest cryogenic propulsion rocket stages. Whitehead and his team are currently preparing to deliver the core stage that will power Artemis II and send a crew of four around the Moon to NASA’s Kennedy Space Center. (NASA/Sam Lott)
Mat Bevill, the associate chief engineer for NASA’s SLS Program, stands in front of a four-segment solid rocket booster that powered the space shuttle at Marshall. As the associate chief engineer for the SLS Program, Bevill assists the program chief engineer by interfacing with each of the element chief engineers and helping make critical decisions for the development and flight of the SLS mega rocket that will power NASA’s Artemis campaign. With the launch of Artemis II, the first crewed test flight of SLS and the Orion spacecraft, Bevill’s technical leadership and support for the SLS Chief Engineer’s Office will place him, once again, at a notable moment in time. “Think of me as the assistant coach,” Bevill said. “While the head coach is on the front line leading the team, I’m on the sidelines providing feedback and advising those efforts.” As a jack-of-all-trades, he enables progress in any way that he can, something he’s familiar with after 37 years with NASA. (NASA/Brandon Hancock)
Brent Gaddes got his start at Marshall supporting the Space Shuttle Program as it made history in low Earth orbit. Now, his work is taking human deep space exploration to the Moon and beyond with NASA’s SLS rocket. As the lead for the Orion stage adapter and payload adapter in the SLS Spacecraft/Payload Integration & Evolution Office, Gaddes is responsible for managing the teams that design, test, and build the Orion stage adapter for the first three Artemis flights, as well as the payload adapter for the future SLS Block 1B configuration. It means having his eye on a lot of moving parts: the Artemis II Orion stage adapter is awaiting shipment to NASA Kennedy later this year, while the major structure for the Artemis III Orion stage adapter is complete with installations of its avionics unit and diaphragm to come as Marshall test teams continue testing and analysis on an engineering development unit of the Artemis IV payload adapter. Gaddes was born in Decatur, Alabama, but grew up a few hours away in Brentwood, Tennessee. His love of space has stayed with him most of his life: “Seeing the Apollo missions on TV as a child led to a fascination with one of humankind’s most remarkable achievements,” Gaddes said. “To work for NASA has fulfilled a dream of mine, and now to be involved with sending humans back to the Moon is truly an incredible privilege and blessing!” (NASA/Sam Lott)
Gwen Artis started her career at NASA as one of the first high school summer interns at Marshall. Although she briefly relocated to Houston to work with retired astronaut Mae Jemison – the first woman of color to go to space – the majority of Artis’ 40-year career has centered at Marshall, where she has worked on a variety of programs including Spacelab, the Chandra X-Ray Observatory, in-space propulsion, SERVIR, and SLS. As systems engineer professional expert for Jacobs with the Jacobs Space Exploration Group ESSCA contract, Artis assists with the management and oversite of the production for each of the launch vehicle stage adapters for the first three SLS flights for Artemis I, II, and III. The cone-shaped adapter partially encloses the rocket’s interim cryogenic propulsion stage and serves as a key connector to the core stage below it and the upper stage above it. “Marshall has made and led countless contributions in technology advancement and human space exploration and to be a small part of that legacy, and particularly a part of the Artemis Generation, is inconceivable,” Artis said. “I constantly share with great enthusiasm how blessed I am to endeavor into this next great era of human space exploration in hopes that my experiences, my personal story, will embolden others and encourage future engineers, scientists, astronauts, technologists, and all other contributors of space exploration.” (NASA/Sam Lott)
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Marshall Juneteenth Festival Honors Black History, Accomplishments
Black Employees and Allies at Marshall (BEAM), NASA Marshall Space Flight Center’s Office of Diversity and Equal Opportunity, and Harambee hosted a Juneteenth Festival on June 17. The event was in Activities Building 4316 for Marshall team members.
From left, Marshall’s Tawnya Laughinghouse and Alix Martin, and Joseph Price from Jacobs participate in a panel discussion June 17 during the Juneteenth Festival at NASA’s Marshall Space Flight Center. The festival’s theme was “Their Wildest Dreams.”NASA/Charles Beason The theme for Juneteenth 2024 was “Their Wildest Dreams,” in honor of Black history and the present accomplishments of African American employees. The festival featured panelists, vendors, food trucks, and more.
“The Juneteenth Festival has become an event that BEAM looks forward to planning for Marshall team members, and we have enjoyed seeing the growth in attendance over the past four years,” said Amanda Otieno, an equal employment specialist in the Office of Diversity & Equal Opportunity and a BEAM member. “Inclusion and cultural awareness are vital for creating a safe and supporting workforce and it’s great to see the center come together to celebrate the significance of the day, but also to learn about and appreciate different cultures. Together we are building a workforce that not only respects but thrives on diversity.”
Marshall team member Andrea Brown sings with her daughter, Jaya Brown, at the Juneteenth Festival.NASA/Charles Beason Juneteenth is the oldest nationally celebrated event marking the end of slavery in the United States. BEAM is an employee resource group at Marshall, and Harambee is an employee resource group for Jacobs. To learn more or join BEAM, Marshall team members can email Otieno.
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Black Space Week 2024: A Conversation with the ‘Passtronaut’ – NFL quarterback Joshua Dobbs
As part of Black Space Week (June 16-22), NASA had a conversation with NFL quarterback Joshua Dobbs, also known as the “Passtronaut.” In addition to his football career, Dobbs holds an aerospace engineering degree, and has a passion for space and STEM education. NASA’s Gary Willis sat down for a conversation about Dobbs’ life on and off the field, and how his interests guide his professional and personal journey. Dobbs also attended the NASA in the Park event June 22 at Huntsville’s Big Spring Park East. The event was hosted by NASA’s Marshall Space Flight Center and Downtown Huntsville Inc. (NASA) › Back to Top
Take 5 with Andrew Schnell
By Wayne Smith
Andrew Schnell grew up in Murfreesboro, Tennessee, just a two-hour trip from the U.S. Space & Rocket Center in Huntsville.
Being nearby, the museum was an obvious attraction because of Schnell’s interest in space exploration as a child. So, too, was a journey toward a long career with NASA’s Marshall Space Flight Center.
Andrew Schnell is the acting manager of NASA’s Chandra X-ray Observatory at the agency’s Marshall Space Flight Center.NASA/Charles Beason “I remember being fascinated with NASA and the Space Shuttle Program from the beginning, and my parents were happy to foster my interest,” said Schnell, the acting manager of NASA’s Chandra X-ray Observatory at Marshall. “We probably visited the Space & Rocket Center once a year, and we toured Kennedy Space Center when I was young. So, when I decided to pursue engineering, NASA was just the obvious place for me.”
As Chandra’s acting project manager today, Schnell and his team monitor the observatory’s operations, “making sure it continues to meet its obligations to the international community of astronomers and astrophysicists that we serve.”
Launched July 23, 1999, NASA is celebrating 25 years of Chandra helping to unravel the secrets of the universe. The observatory is a telescope specially designed to detect X-ray emission from very hot regions of the universe such as exploded stars, clusters of galaxies, and matter around black holes. Marshall has served as home for the Chandra Program Office since its inception.
NASA’s flagship mission for X-ray astronomy, Chandra continues to make contributions to astronomers and astrophysicists. Schnell said what he impresses him most about the observatory is Chandra’s ability to actively contribute to other science missions.
“Over the past year, more than 50 Chandra observations were coordinated with observatories like the James Webb Space Telescope, Hubble, and Marshall’s own IXPE (Imaging X-ray Polarimetry Explorer),” Schnell said. “Our team can respond to a request in a few days, giving astronomers the unique opportunity to observe the same phenomena in multiple wavelengths.”
And 15 years into his NASA career, Schnell said the entire Chandra team continues to motivate him.
“Every one of them is a world-class scientist or engineer,” Schnell said. “Many of them have spent their entire careers keeping Chandra thriving for almost 25 years now with no servicing missions. They know the observatory inside and out, down to the wiring. It’s amazing watching them troubleshoot a problem in real time. They motivate me to do the best job I can do. I don’t want to let such an amazing team down.”
Question: What excites you most about the future of human space exploration, or your NASA work, and your team’s role it?
Schnell: The thing that excites me the most about working with Chandra is that not only are we helping scientists rewrite our understanding of the universe today, but the data we collect with Chandra now will answer questions that scientists haven’t even asked yet. Years from now, an astrophysicist, maybe one who hasn’t been born yet, is going to have a theory about how some aspect of the universe works, and they’re going to use the data we’re collecting right now to test their theory.
Schnell smiles during a visit to NASA’s Kennedy Space Center in 1984. Photo courtesy of Andrew Schnell Chandra is the only X-ray observatory of its caliber flying today, and its replacement isn’t even on the drawing board. It’s really important that we continue to keep it operating, pulling in every bit of data we can for tomorrow’s astrophysicists.
Question: What has been the proudest moment of your career and why?
Schnell: A few years ago, I coached a team of summer interns as they built a CubeSat-scale pulsed plasma thruster and tested it in a vacuum chamber. They won one of the research awards at the expo that summer, with a big check and everything. It was one of the coolest things I’ve ever been a part of.
Question: Who or what inspired you to pursue an education/career that led you to NASA and Marshall?
Schnell: I was a summer intern at Marshall in 2001 and 2002, working with Mike Tinker, who was a structural engineer here in the Engineering Directorate. Mike would mentor several interns every summer, pushing us to write conference papers based on our projects. I will never forget his kindness and his willingness to work with interns every summer, all while managing his other tasks. He inspired me, not only to pursue a career at NASA, but to seek out opportunities to serve as a mentor for interns, co-ops, and younger engineers.
Question: What advice do you have for employees early in their NASA career or those in new leadership roles?
Schnell: I’ve seen how easy it is for younger engineers to lose some confidence when they start working here. They’ll measure themselves against their coworkers and think they’ll never be that good, that they’re imposters, that it’s a fluke that they’re working here. I would tell them that no one becomes a NASA employee or a NASA contractor by accident. You are meant to be here. Be kind to yourself, bring your full self to work every day, and you’ll be an expert in your discipline before you realize it.
Question: What do you enjoy doing with your time while away from work?
Schnell: I enjoy drawing and making comics. And as a native of Cincinnati, Ohio, I try to watch as many Cincinnati Reds games as I can during baseball season.
Smith, a Media Fusion employee and the Marshall Star editor, supports the Marshall Office of Communications.
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Chandra Peers into Densest, Weirdest Stars
The supernova remnant 3C 58 contains a spinning neutron star, known as PSR J0205+6449, at its center. Astronomers studied this neutron star and others like it to probe the nature of matter inside these very dense objects. A new study, made using NASA’s Chandra X-ray Observatory and ESA’s XMM-Newton, reveals that the interiors of neutron stars may contain a type of ultra-dense matter not found anywhere else in the Universe.
In this image of 3C 58, low-energy X-rays are colored red, medium-energy X-rays are green, and the high-energy band of X-rays is shown in blue. The X-ray data have been combined with an optical image in yellow from the Digitized Sky Survey. The Chandra data show that the rapidly rotating neutron star (also known as a “pulsar”) at the center is surrounded by a torus of X-ray emission and a jet that extends for several light-years.X-ray: NASA/CXC/ICE-CSIC/A. Marino et al.; Optical: SDSS; Image Processing: NASA/CXC/SAO/J. Major In this image of 3C 58, low-energy X-rays are colored red, medium-energy X-rays are green, and the high-energy band of X-rays is shown in blue. The X-ray data have been combined with an optical image in yellow from the Digitized Sky Survey. The Chandra data show that the rapidly rotating neutron star (also known as a “pulsar”) at the center is surrounded by a torus of X-ray emission and a jet that extends for several light-years. The optical data shows stars in the field.
The team in this new study analyzed previously released data from neutron stars to determine the so-called equation of state. This refers to the basic properties of the neutron stars including the pressures and temperatures in different parts of their interiors.
The authors used machine learning, a type of artificial intelligence, to compare the data to different equations of state. Their results imply that a significant fraction of the equations of state – the ones that do not include the capability for rapid cooling at higher masses – can be ruled out.
The researchers capitalized on some neutron stars in the study being located in supernova remnants, including 3C 58. Since astronomers have age estimates of the supernova remnants, they also have the ages of the neutron stars that were created during the explosions that created both the remnants and the neutron stars. The astronomers found that the neutron star in 3C 58 and two others were much cooler than the rest of the neutron stars in the study.
The team thinks that part of the explanation for the rapid cooling is that these neutron stars are more massive than most of the rest. Because more massive neutron stars have more particles, special processes that cause neutron stars to cool more rapidly might be triggered.
One possibility for what is inside these neutron stars is a type of radioactive decay near their centers where neutrinos – low mass particles that easily travel through matter – carry away much of the energy and heat, causing rapid cooling.
Another possibility is that there are types of exotic matter found in the centers of these more rapidly cooling neutron stars.
The Nature Astronomy paper describing these results is available here. The authors of the paper are Alessio Marino (Institute of Space Sciences (ICE) in Barcelona, Spain), Clara Dehman (ICE), Konstantinos Kovlakas (ICE), Nanda Rea (ICE), J. A. Pons (University of Alicante in Spain), and Daniele Viganò (ICE).
NASA’s Marshall Space Flight Center manages the Chandra program. The Smithsonian Astrophysical Observatory’s Chandra X-ray Center controls science from Cambridge Massachusetts and flight operations from Burlington, Massachusetts.
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Growing Interest: Marshall Hosts Pollinator Week Event
Team members at NASA’s Marshall Space Flight Center learn about the center’s pollinator garden from Joni Melson, left, and Kristen Wagner during a Pollinator Week event June 17. The Pollinator Club at Marshall hosted the event, showing the benefits of cultivating a healthy biosphere of flowering plants and other greenery to support local populations of bees, butterflies, and other pollinating insects. Attendees also received free native plants and seeds. The event was part of Pollinator Week, the annual nationwide environmental activity held this year from June 17-23. The center’s pollinator garden is situated between Building 4315 and the Redstone Arsenal walking trail. The garden is a volunteer-maintained collection of more than 160 plants, mostly drought-tolerant perennials which will draw pollinating insects. The habitat, a registered Monarch Waystation, is certified with the North American Butterfly Association. Marshall team members can learn more about the Pollinator Club on Inside Marshall. (NASA/Charles Beason)
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NASA, Partners Conduct Fifth Asteroid Impact Exercise, Release Summary
For the benefit of all, NASA released a summary June 20 of the fifth biennial Planetary Defense Interagency Tabletop Exercise. NASA’s Planetary Defense Coordination Office, in partnership with FEMA (Federal Emergency Management Agency) and with the assistance of the U.S. Department of State Office of Space Affairs, convened the tabletop exercise to inform and assess our ability as a nation to respond effectively to the threat of a potentially hazardous asteroid or comet.
Representatives from NASA, FEMA, and the planetary defense community participate in the 5th Planetary Defense Interagency Tabletop Exercise to inform and assess our ability as a nation to respond effectively to the threat of a potentially hazardous asteroid or comet.NASA/JHU-APL/Ed Whitman Although there are no known significant asteroid impact threats for the foreseeable future, hypothetical exercises provide valuable insights by exploring the risks, response options, and opportunities for collaboration posed by varying scenarios, from minor regional damage with little warning to potential global catastrophes predicted years or even decades in the future.
“The uncertainties in these initial conditions for the exercise allowed participants to consider a particularly challenging set of circumstances,” said Lindley Johnson, planetary defense officer emeritus NASA Headquarters. “A large asteroid impact is potentially the only natural disaster humanity has the technology to predict years in advance and take action to prevent.”
During the exercise, participants considered potential national and global responses to a hypothetical scenario in which a never-before-detected asteroid was identified that had, according to initial calculations, a 72% chance of hitting Earth in approximately 14 years. The preliminary observations described in the exercise, however, were not sufficient to precisely determine the asteroid’s size, composition, and long-term trajectory. To complicate this year’s hypothetical scenario, essential follow-up observations would have to be delayed for at least seven months – a critical loss of time – as the asteroid passed behind the Sun as seen from Earth’s vantage point in space.
Conducting exercises enable government stakeholders to identify and resolve potential issues as part of preparation for any real-world situation. It was held in April at the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, and brought together nearly 100 representatives from across U.S. government agencies and, for the first time, international collaborators on planetary defense.
“Our mission is helping people before, during, and after disasters,” said Leviticus “L.A.” Lewis, FEMA detailee to NASA’s Planetary Defense Coordination Office. “We work across the country every day before disasters happen to help people and communities understand and prepare for possible risks. In the event of a potential asteroid impact, FEMA would be a leading player in interagency coordination.”
This exercise was the first to use data from NASA’s DART (Double Asteroid Redirection Test) mission, the first in-space demonstration of a technology for defending Earth against potential asteroid impacts. The DART spacecraft, which impacted the asteroid moonlet Dimorphos on Sept. 26, 2022, confirmed a kinetic impactor could change the trajectory of an asteroid. Applying this or any type of technology to an actual impact threat would require many years of advance planning.
To help ensure humanity will have the time needed to evaluate and respond to a potentially hazardous asteroid or comet, NASA continues the development of its NEO Surveyor (Near-Earth Object Surveyor), an infrared space telescope designed specifically to expedite our ability to discover and characterize most of the potentially hazardous near-Earth objects many years before they could become an impact threat. The agency’s NEO Surveyor’s proposed launch date is set for June 2028.
NASA will publish a complete after-action report for the tabletop exercise later, which will include strengths and gaps identified from analysis of the response, other discussions during the exercise, and recommendations for improvement.
“These outcomes will help to shape future exercises and studies to ensure NASA and other government agencies continue improving planetary defense preparedness,” said Johnson.
NASA established the Planetary Defense Coordination Office in 2016 to manage the agency’s ongoing planetary-defense efforts. Johns Hopkins APL managed the DART mission for NASA as a project of the agency’s Planetary Missions Program Office, which is at NASA’s Marshall Space Flight Center.
Learn more about planetary defense at NASA.
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