NASA

3 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) NASA Deputy Administrator Pam Melroy speaks at the Microgravity Science Summit at the Eisenhower Executive Office Building, Monday, Dec. 13, 2024, in Washington.Credit: NASA/Aubrey Gemignani NASA leadership participated in the White House Office of Science and Technology Policy’s Microgravity Science Summit (OSTP) on Dec.16 focused on sharing information with leaders across the U.S. federal government about the benefits of microgravity research. During the summit, NASA Deputy Administrator Pam Melroy, OSTP leadership, and others highlighted the importance of the government coming together to understand the transformative power of microgravity and lay the foundation for the next generation of research and innovation. “The value of microgravity research has never been clearer. This unique environment offers us the chance to explore fundamental questions and test cutting-edge ideas in ways that simply are not possible under the constraints of Earth’s gravity,” said Melroy. “NASA has long been at the forefront of microgravity research, working in collaboration with a growing network of government partners, international space agencies, commercial partners, and academic institutions. Together, we have established a strong foundation for microgravity science aboard the International Space Station, but our work is far from finished. In fact, it’s only just beginning.” The theme of the summit, “Building a Coalition for the Next Generation of Microgravity Research,” covered work currently being completed on the International Space Station to bring benefit back to Earth, open space to more people, and allow humans to travel farther into space for exploration. Leaders also heard about NASA’s plan to continue the work into the future on commercial space stations and build on the government’s efforts to maintain a national research capability in orbit. In 2023, the Biden-Harris Administration released a National Low Earth Orbit Research and Development Strategy to provide an interagency strategy and action plan to enable U.S. government-wide collaboration and support of public-private partnerships to ensure continuity of access and sustainable low Earth orbit research and development activities. The strategy supports the United States Space Priorities Framework with a focus on scientific and technological innovation, economic growth, commercial development, and space-related STEM education and workforce development. The summit also included discussion on the great strides and potential for the future in cancer research, semiconductors, wildland fire management, and in space production applications. “The key to success will be collaboration,” said Melroy. “What we are doing is building a vision for the future—one where microgravity is not a niche area of study, but an essential part of the scientific toolkit for tackling our biggest challenges, helping to improve our national capabilities and posture. A future where space isn’t just a far-off and mysterious destination—it’s an environment for collaboration, discovery, and progress.” On Dec. 16, NASA also released its Low Earth Orbit Microgravity strategy outlining the agency’s long-term approach to advance microgravity science, technology, and exploration. Keep Exploring Discover Related Topics NASA’s Low Earth Orbit Microgravity Strategy Low Earth Orbit Economy Commercial Space Space Station Research and Technology View the full article

5 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) Data from the SWOT satellite was used to calculate average water levels for lakes and reservoirs in the Ohio River Basin from July 2023 to November 2024. Yellow indicates values greater than 1,600 feet (500 meters) above sea level; dark purple represents water levels less than 330 feet (100 meters). Data from the U.S.-European Surface Water and Ocean Topography mission gives researchers a detailed look at lakes and reservoirs in a U.S. watershed. The Ohio River Basin stretches from Pennsylvania to Illinois and contains a system of reservoirs, lakes, and rivers that drains an area almost as large as France. Researchers with the SWOT (Surface Water and Ocean Topography) mission, a collaboration between NASA and the French space agency CNES (Centre National d’Études Spatiales), now have a new tool for measuring water levels not only in this area, which is home to more than 25 million people, but in other watersheds around the world as well. Since early 2023, SWOT has been measuring the height of nearly all water on Earth’s surface — including oceans, lakes, reservoirs, and rivers — covering nearly the entire globe at least once every 21 days. The SWOT satellite also measures the horizontal extent of water in freshwater bodies. Earlier this year, the mission started making validated data publicly available. “Having these two perspectives — water extent and levels — at the same time, along with detailed, frequent coverage over large areas, is unprecedented,” said Jida Wang, a hydrologist at the University of Illinois Urbana-Champaign and a member of the SWOT science team. “This is a groundbreaking, exciting aspect of SWOT.” Researchers can use the mission’s data on water level and extent to calculate how the amount of water stored in a lake or reservoir changes over time. This, in turn, can give hydrologists a more precise picture of river discharge — how much water moves through a particular stretch of river. The visualization above uses SWOT data from July 2023 to November 2024 to show the average water level above sea level in lakes and reservoirs in the Ohio River Basin, which drains into the Mississippi River. Yellow indicates values greater than 1,600 feet (500 meters), and dark purple represents water levels less than 330 feet (100 meters). Comparing how such levels change can help hydrologists measure water availability over time in a local area or across a watershed. Complementing a Patchwork of Data Historically, estimating freshwater availability for communities within a river basin has been challenging. Researchers gather information from gauges installed at certain lakes and reservoirs, from airborne surveys, and from other satellites that look at either water level or extent. But for ground-based and airborne instruments, the coverage can be limited in space and time. Hydrologists can piece together some of what they need from different satellites, but the data may or may not have been taken at the same time, or the researchers might still need to augment the information with measurements from ground-based sensors. Even then, calculating freshwater availability can be complicated. Much of the work relies on computer models. “Traditional water models often don’t work very well in highly regulated basins like the Ohio because they have trouble representing the unpredictable behavior of dam operations,” said George Allen, a freshwater researcher at Virginia Tech in Blacksburg and a member of the SWOT science team. Many river basins in the United States include dams and reservoirs managed by a patchwork of entities. While the people who manage a reservoir may know how their section of water behaves, planning for water availability down the entire length of a river can be a challenge. Since SWOT looks at both rivers and lakes, its data can help provide a more unified view. “The data lets water managers really know what other people in these freshwater systems are doing,” said SWOT science team member Colin Gleason, a hydrologist at the University of Massachusetts Amherst. While SWOT researchers are excited about the possibilities that the data is opening up, there is still much to be done. The satellite’s high-resolution view of water levels and extent means there is a vast ocean of data that researchers must wade through, and it will take some time to process and analyze the measurements. More About SWOT The SWOT satellite was jointly developed by NASA and CNES, with contributions from the Canadian Space Agency (CSA) and the UK Space Agency. NASA’s Jet Propulsion Laboratory, managed for the agency by Caltech in Pasadena, California, leads the U.S. component of the project. For the flight system payload, NASA provided the Ka-band radar interferometer (KaRIn) instrument, a GPS science receiver, a laser retroreflector, a two-beam microwave radiometer, and NASA instrument operations. The Doppler Orbitography and Radioposition Integrated by Satellite system, the dual frequency Poseidon altimeter (developed by Thales Alenia Space), the KaRIn radio-frequency subsystem (together with Thales Alenia Space and with support from the UK Space Agency), the satellite platform, and ground operations were provided by CNES. The KaRIn high-power transmitter assembly was provided by CSA. To learn more about SWOT, visit: https://swot.jpl.nasa.gov News Media Contacts Jane J. Lee / Andrew Wang Jet Propulsion Laboratory, Pasadena, Calif. 818-354-0307 / 626-379-6874 jane.j.lee@jpl.nasa.gov / andrew.wang@jpl.nasa.gov 2024-176 Share Details Last Updated Dec 17, 2024 Related TermsSWOT (Surface Water and Ocean Topography)Jet Propulsion LaboratoryWater on Earth Explore More 5 min read NASA Mars Orbiter Spots Retired InSight Lander to Study Dust Movement Article 1 day ago 5 min read NASA’s Perseverance Rover Reaches Top of Jezero Crater Rim Article 5 days ago 5 min read NASA’s Juno Mission Uncovers Heart of Jovian Moon’s Volcanic Rage Article 5 days ago Keep Exploring Discover Related Topics Missions Humans in Space Climate Change Solar System View the full article

1 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) The Airspace Operations and Safety Program (AOSP) enables safe, sustainable, and efficient aviation transportation operations to benefit the flying public and ensure the global competitiveness of the U.S. aviation industry. We are transforming the future of aviation into a digital, federated, and service-oriented architecture that fosters the growth of safe airspace for all users. By partnering with FAA, academia, safety experts, operators, manufacturers, municipalities, and other government agencies, we facilitate the integration of new aviation technologies, ensure airspace access for new entrants, and champion the success of increasingly autonomous operations. At AOSP, safety is at the heart of everything we do. We stand firm in our unwavering commitment to the safe integration of these vehicles. AOSP Approach: Efficient, Sustainable Aviation Operations Seamless Integration of Heterogeneous and Emergent Aviation Prognostic In-Time Aviation Safety Management System of Future Operations System Level Autonomy for Aviation Operations, Vehicle Command and Control Systems, and Safety Meet the diversity, density, and complexity challenges of future aviation AOSP Projects Advanced Capabilities for Emergency Response Operations Project Air Mobility Pathfinders Air Traffic Management—Exploration (ATM-X) System-Wide Safety (SWS) Facebook logo @NASA@NASAaero@NASA_es @NASA@NASAaero@NASA_es Instagram logo @NASA@NASAaero@NASA_es Linkedin logo @NASA Explore More 2 min read Media Invited to Speak to NASA Ames Experts – Celebrating 85 Years Article 2 hours ago 3 min read NASA Sees Progress on Starlab Commercial Space Station Development Article 24 hours ago 4 min read Helium Conservation by Diffusion Limited Purging of Liquid Hydrogen Tanks Article 5 days ago Keep Exploring Discover More Topics From NASA Missions Humans In Space Solar System Exploration Solar System Overview Our solar system has one star, eight planets, five officially named dwarf planets, hundreds of moons, thousands… Explore NASA’s History Share Details Last Updated Dec 17, 2024 EditorLillian GipsonContactJim Bankejim.banke@nasa.gov Related TermsGeneral View the full article

Caption: Expedition 70 Flight Engineer Nikolai Chub from Roscosmos is pictured during a spacewalk to inspect a backup radiator, deploy a nanosatellite, and install communications hardware on the International Space Station’s Nauka science module.Credit: NASA NASA will provide live coverage as two Roscosmos cosmonauts conduct a spacewalk outside of the International Space Station on Thursday, Dec. 19. NASA’s live coverage begins at 9:45 a.m. EST, Thursday on NASA+. Learn how to watch NASA content through a variety of platforms, including social media. The spacewalk is scheduled to begin at approximately 10:10 a.m. and last about six and a half hours. Expedition 72 crewmates Alexey Ovchinin and Ivan Vagner will venture outside the station’s Poisk module to install an experiment package designed to monitor celestial x-ray sources and new electrical connector patch panels and remove several experiments for disposal. The two cosmonauts also will relocate a control panel for the European robotic arm, which is attached to the Nauka multipurpose laboratory module. Roscosmos cosmonaut Alexsandr Gorbunov will operate the arm during the spacewalk from inside the station. Roscosmos spacewalk 63 will be the second for Ovchinin and the first for Vagner. Ovchinin will wear an Orlan spacesuit with red stripes, and Vagner will wear a spacesuit with blue stripes. It will be the 272nd spacewalk in support of space station assembly, maintenance, and upgrades. Get breaking news, images, and features from the space station on the station blog, Instagram, Facebook, and X. Learn more about the International Space Station at: https://www.nasa.gov/station -end- Claire O’Shea / Josh Finch Headquarters, Washington 202-358-1100 claire.a.o’shea@nasa.gov / joshua.a.finch@nasa.gov Sandra Jones Johnson Space Center, Houston 281-483-5111 sandra.p.jones@nasa.gov Share Details Last Updated Dec 17, 2024 LocationJohnson Space Center Related TermsInternational Space Station (ISS)ISS ResearchMissions View the full article

NASA’s Ames Research Center in California’s Silicon Valley, is celebrating 85 years of cutting-edge research and development in space, life sciences, supercomputing, aeronautics, and more for the benefit of humanity. Ames was founded as an aeronautical laboratory in December 1939, and has since contributed to many of NASA’s flagship missions from Apollo to Artemis. NASA Ames experts are available for interviews Thursday, Dec. 19, and Friday, Dec. 20. To request an interview about the center’s legacy in space, science, technology, and aeronautics, email the Ames newsroom at: arc-dl-newsroom@mail.nasa.gov. NASA Ames experts include: James Anderson, NASA Ames historian; Lynn Harper, lead of integrative studies in the NASA Space Portal, working to propel U.S. industry toward the development of a sustainable, scalable, and profitable non-NASA demand for services and products manufactured in the microgravity environment of low Earth orbit; Shivanjli Sharma, aerospace research engineer, working to enable advanced aviation technologies for new methods of air cargo and passenger transportation in urban, suburban, rural, and regional communities; Dave Alfano, chief of the Ames Intelligent Systems Division, working to produce ground and flight software systems and data architectures for data mining, analysis, integration, and management; integrated health management, and more for missions across the agency. Ames has established itself as a leader in the aeronautics industry, developing foundational technologies for advanced air vehicles, including air taxis and remotely piloted aircraft. On the International Space Station, Ames researchers have tested a method to develop nutrients off-Earth and on-demand. Cube-shaped robots have been delivered to the station to assist astronauts with routine duties. Ames engineers have developed and are testing a heat shield for the Orion crew capsule that will safely return astronauts home to Earth as part of the agency’s Artemis missions to the Moon. For more information on Ames’ history and contributions, visit: https://www.nasa.gov/reference/ames-history -end- Rachel Hoover Ames Research Center, Silicon Valley, Calif. 650-604-4789 rachel.l.hoover@nasa.gov View the full article

X-ray: NASA/CXC; Infrared: ESA/Webb, NASA & CSA, P. Zeilder, E.Sabbi, A. Nota, M. Zamani; Image Processing: NASA/CXC/SAO/L. Frattare and K. Arcand Since antiquity, wreaths have symbolized the cycle of life, death, and rebirth. It is fitting then that one of the best places for astronomers to learn more about the stellar lifecycle resembles a giant holiday wreath itself. The star cluster NGC 602 lies on the outskirts of the Small Magellanic Cloud, which is one of the closest galaxies to the Milky Way, about 200,000 light-years from Earth. The stars in NGC 602 have fewer heavier elements compared to the Sun and most of the rest of the galaxy. Instead, the conditions within NGC 602 mimic those for stars found billions of years ago when the universe was much younger. This new image combines data from NASA’s Chandra X-ray Observatory with a previously released image from the agency’s James Webb Space Telescope. The dark ring-like outline of the wreath seen in Webb data (represented as orange, yellow, green, and blue) is made up of dense clouds of filled dust. Meanwhile, X-rays from Chandra (red) show young, massive stars that are illuminating the wreath, sending high-energy light into interstellar space. These X-rays are powered by winds flowing from the young, massive stars that are sprinkled throughout the cluster. The extended cloud in the Chandra data likely comes from the overlapping X-ray glow of thousands of young, low-mass stars in the cluster. X-ray: NASA/CXC/SAO; Optical: Clow, M.; Image Processing: NASA/CXC/SAO/L. Frattare and K. Arcand In addition to this cosmic wreath, a new version of the “Christmas tree cluster” is also now available. Like NGC 602, NGC 2264 is a cluster of young stars between one and five million years old. (For comparison, the Sun is a middle-aged star about 5 billion years old — about 1,000 times older.) In this image of NGC 2264, which is much closer than NGC 602 at a distance of about 2,500 light-years from Earth, Chandra data (red, purple, blue, and white) has been combined with optical data (green and violet) captured from by astrophotographer Michael Clow from his telescope in Arizona in November 2024. NASA’s Marshall Space Flight Center in Huntsville, Alabama, manages the Chandra program. The Smithsonian Astrophysical Observatory’s Chandra X-ray Center controls science operations from Cambridge, Massachusetts, and flight operations from Burlington, Massachusetts. Read more from NASA’s Chandra X-ray Observatory. Learn more about the Chandra X-ray Observatory and its mission here: https://www.nasa.gov/chandra https://chandra.si.edu Visual Description This release includes two composite images, each featuring a star cluster that strongly resembles holiday greenery. The first image depicts star cluster NGC 602 in vibrant and festive colors. The cluster includes a giant dust cloud ring, shown in greens, yellows, blues, and oranges. The green hues and feathery edges of the ring cloud create the appearance of a wreath made of evergreen boughs. Hints of red representing X-rays provide shading, highlighting layers within the wreath-like ring cloud. The image is aglow with specks and dots of colorful, festive light, in blues, golds, whites, oranges, and reds. These lights represent stars within the cluster. Some of the lights gleam with diffraction spikes, while others emit a warm, diffuse glow. Upon closer inspection, many of the glowing specks have spiraling arms, indicating that they are, in fact, distant galaxies. The second image in today’s release is a new depiction of NGC 2264, known as the “Christmas Tree Cluster”. Here, wispy green clouds in a conical shape strongly resemble an evergreen tree. Tiny specks of white, blue, purple, and red light, stars within the cluster, dot the structure, turning the cloud into a festive, cosmic Christmas tree! News Media Contact Megan Watzke Chandra X-ray Center Cambridge, Mass. 617-496-7998 mwatzke@cfa.harvard.edu Lane Figueroa Marshall Space Flight Center, Huntsville, Alabama 256-544-0034 lane.e.figueroa@nasa.gov Explore More 7 min read NASA’s Webb Finds Planet-Forming Disks Lived Longer in Early Universe NASA’s James Webb Space Telescope just solved a conundrum by proving a controversial finding made… Article 1 day ago 2 min read Hubble Images a Grand Spiral This NASA/ESA Hubble Space Telescope image features the glorious spiral galaxy NGC 5643, which is… Article 4 days ago 4 min read NASA Successfully Integrates Roman Mission’s Telescope, Instruments Article 5 days ago Keep Exploring Discover More Topics From NASA Missions Humans in Space Climate Change Solar System View the full article

2 min read Jovian Vortex Hunters Spun Up Over New Paper Jumping Jupiter! The results are in, storm chasers! Thanks to your help over the last two years the Jovian Vortex Hunter project has published a catalog of 7222 vortices, which you can download here. Each vortex is an enormous swirling windstorm in Jupiter’s atmosphere–terrifying yet beautiful to behold. The vortices are labeled by color (“white” is most common, then “dark”, then “red”). The catalog reveals distributions of vortex sizes, aspect ratios, and locations on the planet. For example, your work showed that white and dark vortices are preferentially found near the poles. These distributions help researchers derive general parameters about Jupiter’s atmosphere that can give us insights about its internal processes and the atmospheres of other planets. Over 5,000 of you helped build this catalog by performing over a million classifications of images of Jupiter from the JunoCam instrument on NASA’s Juno mission. The details of the catalog are now published in this paper in the Planetary Science Journal. You can also learn more about this amazing volunteer effort in a video you can find on the Jovian Vortex Hunter Results webpage.Thanks to your efforts, The Jovian Vortex Hunter project is out of data. But you can work with JunoCam data in a different way by participating in NASA’s JunoCam citizen science project. A set of really cool vortices–spinning storms–found by Jovian Vortex Hunters. Data from the JunoCam instrument on NASA’s Juno mission. Facebook logo @DoNASAScience @DoNASAScience Share Details Last Updated Dec 17, 2024 Editor Bill Keeter Related Terms Citizen Science Planetary Science Division View the full article

Northrop Grumman & NASA Digital Engineering SAA Kick-off meeting at Thompson Space Innovation Center. NASA’s Digital Engineering is paving the way for exciting new possibilities. Their latest Space Act Agreement with Northrop Grumman promises to accelerate progress in space exploration through innovative collaboration. Under NASA’s HQ Office of the Chief Engineer, Terry Hill the Digital Engineering Program Manager, recently signed a Space Act Agreement with Northrop Grumman Space Sector to explore digital engineering approaches to sharing information between industry partners and NASA. This collaboration aims to support NASA’s mission by advancing engineering practices to reduce the time from concept to flight. By leveraging digital engineering tools, this collaboration could lead to improved design, testing, and simulation processes, It could also help improve how the government and industry write contracts, making it easier and more efficient for them to share information. This would help both sides work together better, handle more complicated missions, and speed up the development of new space technologies. This collaboration between NASA and Northrop Grumman brings exciting possibilities for the future of space exploration. By embracing digital engineering, both organizations are working toward more efficient, cost-effective missions and solutions to greater challenges. Beyond accelerating mission timelines, the insights and technologies developed through this collaboration could pave the way for groundbreaking advancements in space capabilities. View the full article

5 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) NASA’s Stennis Space Center enjoyed an active 2024, marking several milestones and engaging in frontline activities in several key areas. A compilation video offers a look at 2024 highlights in such areas of work as propulsion testing, autonomous systems, range operations, community outreach, and STEM engagement. NASA’s Stennis Space Center near Bay St. Louis, Mississippi, celebrated propulsion testing and site operations milestones in 2024, all while inspiring the Artemis Generation and welcoming new leadership that will help NASA Stennis innovate and grow into the future. Featured highlights show a year of progress and vision, as NASA Stennis accelerates the exploration and commercialization of space, innovates to benefit NASA and industry, and leverages assets to grow as an impactful aerospace and technology hub. “These highlights are just a small snapshot of 2024 at NASA Stennis that show the future is bright,” Bailey said. “We have an incredibly talented and committed team of employees – and all of Mississippi can be proud of the work they do here at NASA Stennis. Together, with the Artemis Generation leading the way, we are returning to the Moon. Together, we are a part of something great.” New Center Leadership NASA Stennis Director John Bailey, right, and NASA Stennis Deputy Director Christine Powell stand near the United States Capitol during a visit to Washington, D.C. on Sept. 18. It marked the first visit to Capitol Hill for the center leaders since being named to their current roles. NASA/Stennis NASA Administrator Bill Nelson named John Bailey as director of NASA Stennis in April. Bailey had been serving as acting director since January 2024. “So much of NASA runs through Stennis,” said Nelson. “It is where we hone new and exciting capabilities in aerospace, technology, and deep space exploration. I am confident that John will lead the nation’s largest and premier propulsion test site to even greater success.” Four months later in August, Bailey announced that longtime propulsion engineer/manager Christine Powell had been selected as deputy director of NASA Stennis. Powell, the first woman selected as NASA Stennis deputy director, began her 33-year agency career as an intern at the center in 1991. She previously worked in multiple Engineering and Test Directorate roles, and most recently served as manager of the NASA Rocket Propulsion Test Program Office. Propulsion Activity NASA achieves a major milestone for future Artemis missions with successful completion of the second – and final – RS-25 engine certification test series April 3 on the Fred Haise Test Stand at NASA’s Stennis Space Center. NASA/Danny Nowlin NASA achieved major milestones for future Artemis missions at NASA Stennis in 2024. The NASA Stennis test team successfully completed a second – and final – RS-25 engine certification test series in April. The mission-critical series verified engine upgrades designed to enhance efficiency and reliability for future SLS (Space Launch System) missions. NASA Stennis crews also completed a safe lift and installation of the interstage simulator component in October needed for future testing of NASA’s exploration upper stage in the B-2 position of the Thad Cochran Test Stand. The component will function during Green Run testing like the SLS interstage section that helps protect the upper stage during Artemis launches. The test complex milestones support NASA’s goal of returning humans to the Moon and paving the way for future Mars exploration through Artemis missions. Commercial Testing NASA Stennis commercial tenant Rocket Lab completes a successful hot fire test of its Archimedes engine in its onsite test complex in the second half of 2024. Rocket Lab is one of numerous customers conducting test campaigns at NASA Stennis during the most recent year. Rocket Lab Already the nation’s largest multiuser propulsion test site, NASA Stennis aims to continue fueling growth of the commercial space market even further by working with aerospace companies to support a range of testing needs. In 2024, NASA Stennis supported work conducted by commercial companies such as Boeing, Blue Origin, Evolution Space, Launcher (a Vast company), Relativity Space, Rocket Lab, and Rolls-Royce. Officials from NASA Stennis and Roll-Royce also broke ground in June for a test pad located in the NASA Stennis E Test Complex. Rolls-Royce will conduct hydrogen testing for the Pearl 15 engine, which helps power the Bombardier Global 5500 & 6500 aircraft. ASTRA Mission Success Members of the NASA Stennis Autonomous Systems Laboratory team monitor the center’s in-space satellite payload from the onsite ASTRA (Autonomous Satellite Technology for Resilient Applications) Payload Operation Command Center. The ASTRA payload launched aboard the Sidus Space LizzieSat-1 small satellite in March 2024, with the NASA Stennis team announcing in July that it had achieved primary mission objectives. In September, the team announced the ASTRA mission would continue during the satellite’s planned four-year mission.NASA/Danny Nowlin In July, NASA Stennis and commercial partner Sidus Space Inc. announced primary mission success for the center’s historic in-space mission – an autonomous systems payload aboard an orbiting satellite. ASTRA (Autonomous Satellite Technology for Resilient Applications) is the on-orbit payload mission developed by NASA Stennis. The NASA Stennis ASTRA technology demonstrator is a payload rider aboard the Sidus Space premier satellite, LizzieSat-1 (LS-1) small satellite. Partner Sidus Space is responsible for all LS-1 mission operations, including launch and satellite activation, which allowed the NASA Stennis ASTRA team to complete its primary mission objectives. NASA Stennis announced in September it will continue the center’s in-space autonomous systems payload mission through a follow-on agreement with Sidus Space Inc. Range Operations The Skydweller Aero solar-powered, autonomous aircraft flies above the Thad Cochran Test Stand (B-1/B-2) at NASA’s Stennis Space Center during a September 2024 test operation. Skydweller Aero has an ongoing airspace agreement with NASA Stennis to conduct test flights of its aircraft in the area. Skydweller Aero During 2024, NASA Stennis entered into an agreement with Skydweller Aero Inc. for the company to operate its solar-powered autonomous aircraft in the site’s restricted airspace, a step towards achieving a strategic center goal. The agreement marked the first Reimbursable Space Act agreement between NASA Stennis and a commercial company to utilize the south Mississippi center’s unique capabilities to support testing and operation of uncrewed systems. The company announced in October it had completed an initial test flight campaign of the aircraft, including two test excursions totaling 16 and 22.5 hours. NASA Engagement NASA Stennis representatives inspire the Artemis Generation at the NAS Pensacola Blue Angels Homecoming Air Show on Nov. 1-2. NASA’s exhibits at the air show honored 55th anniversary of the Apollo 11 lunar landing and showcased the agency’s mission to inspire the world through discovery. NASA/Stennis NASA representatives participated in a variety of outreach activities during the past year to create meaningful connections with the Artemis Generation. The NASA ASTRO CAMP® Community Partners program, which originated at the south Mississippi NASA center, surpassed previous milestone marks in fiscal year 2024 by partnering with 373 community sites, including 50 outside the United States, to inspire youth, families, and educators. NASA Stennis also supported STEM (science, technology, engineering, and mathematics) engagement during the year. It once again joined with NASA’s Robotics Alliance Project and co-sponsor Mississippi Power to support the second annual For the Inspiration and Recognition of Science and Technology (FIRST) Robotics Magnolia Regional Competition in Laurel, Mississippi. The event attracted 37 high school teams from eight states and one from Mexico. The center also supported NASA activities during the 2024 total solar eclipse. In addition, it hosted informational efforts and exhibits at high-visibility events such as the 51st Annual Bayou Classic, and Essence Fest in New Orleans. For information about NASA’s Stennis Space Center, visit: Stennis Space Center – NASA Share Details Last Updated Dec 16, 2024 EditorNASA Stennis CommunicationsContactC. Lacy Thompsoncalvin.l.thompson@nasa.gov / (228) 688-3333LocationStennis Space Center Related TermsStennis Space Center View the full article

5 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) The Orion Environmental Test Article photographed inside the Thermal Vacuum Chamber on April 11, 2024, in the Space Environments Complex at NASA’s Neil Armstrong Test Facility in Sandusky, Ohio. Credit: NASA/Quentin Schwinn Making the voyage 1.4 million miles around the Moon and back — the farthest a spacecraft built for humans has ever gone — the Orion spacecraft has faced a battery of tests over the years. Though Orion successfully proved its capabilities in the harsh environment of space during the Artemis I mission, Orion’s evaluation did not end at splashdown. The crew module, now known as the Orion Environmental Test Article (ETA), returned to NASA’s Neil Armstrong Test Facility in Sandusky, Ohio, in January 2024 and completed an 11-month test campaign necessary for the safety and success of Artemis II, the first crewed mission under NASA’s Artemis campaign. Engineers and technicians from NASA and Lockheed Martin subjected the test article to the extreme conditions Orion may experience in a launch abort scenario. In the event of an emergency, Orion — and astronauts inside — will jettison away from the SLS (Space Launch System) rocket for a safe landing in the ocean. Experts at NASA’s Neil Armstrong Test Facility in Sandusky, Ohio, conducted a lightning test, which simulates the electromagnetic effects of a lightning strike to the vehicle on the launch pad awaiting liftoff. The Feb. 20, 2024 test proved the grounding path of the vehicle is operating as designed and protecting the vehicle from damage to any of its equipment or systems. Credit: NASA/Quentin Schwinn Experts installed NASA’s Launch Abort System, designed to carry the crew to safety in the event of an emergency during launch or ascent. The Orion test article was subjected to acoustic levels simulating both a nominal ascent and a launch abort scenario. The acoustic test chamber at NASA’s Neil Armstrong Test Facility in Sandusky, Ohio, blasted the test article at a volume of almost 164 decibels on Sept. 9, 2024. Credit: NASA/Jordan Salkin On Nov. 11, 2024, experts successfully at NASA’s Neil Armstrong Test Facility completed the docking mechanism jettison test, designed to connect and disconnect the Orion spacecraft to Gateway, a small space station that will orbit the Moon. They also completed the forward bay cover jettison test on Nov. 23, 2024, which is the last piece that must eject right before parachutes deploy, and successfully tested Orion’s uprighting system. Credit: NASA/Jordan Salkin “This event would be the maximum stress and highest load that any of the systems would see,” said Robert Overy, Orion ETA project manager, NASA’s Glenn Research Center in Cleveland. “We’re taking a proven vehicle from a successful flight and pushing it to its limits. The safety of the astronaut crew depends on this test campaign.” Experts conducted tests that simulated the noise levels of an abort during launch in addition to the electromagnetic effects of lightning strikes. The test campaign also jettisoned the test article’s docking module and parachute covers, as well as the crew module uprighting system, which consists of five airbags on top of the spacecraft that inflate upon splashdown. “It’s been a successful test campaign,” Overy said. “The data has matched the prediction models, and everything operated as expected after being subjected to nominal and launch abort acoustic levels. We are still analyzing data, but the preliminary results show the vehicle and facility operated as desired.” On. Nov. 23, 2024, after subjecting the Orion test article to launch abort-level acoustics, experts tested the functionality of the forward bay cover, which is the last piece that must eject before parachutes deploy. Credit: NASA/Jordan Salkin and Quentin Schwinn Testing Orion at such high acoustic levels was a major milestone for Artemis. The Reverberant Acoustic Test Facility, the world’s most powerful spacecraft acoustic test chamber, was built in 2011 in anticipation of this specific test campaign. “These tests are absolutely critical because we have to complete all of these tests to say the spacecraft design is safe and we’re ready to fly a crew for the first time on Artemis II,” said Michael See, ETA vehicle manager, Orion Program. “This is the first time we’ve been able to test a spacecraft on the ground in such an extreme abort-level acoustic environment.” The Orion Environmental Test Article with Launch Abort System installed moves to the Reverberant Acoustic Test Facility, the most powerful spacecraft acoustic test chamber in the world, on Sept. 9, 2024, at NASA’s Neil Armstrong Test Facility in Sandusky, Ohio. Credit: NASA/Jordan Salkin and Quentin Schwinn Part of NASA Glenn, Armstrong Test Facility is home to the world’s largest and most powerful space environment simulation chambers capable of testing full-sized spacecraft for all the extreme conditions of launch and spaceflight. The facility not only houses an acoustic test chamber, but also a thermal-vacuum chamber and spacecraft vibration system. “The facility is unique because there’s no other place in the world capable of testing spacecraft like this,” Overy said. “Armstrong Test Facility is a one-stop-shop for all your testing needs to prepare your spacecraft for the severe and challenging journey to and from space.” Orion’s Round-Trip Journey to Ohio This is not the first time Orion has been inside the walls of the Space Environments Complex at Armstrong Test Facility. The spacecraft underwent mission-critical testing in 2019, where it was subjected to extreme temperatures and an electromagnetic environment before it launched on Artemis I in 2022. “I remember when it first arrived, the gravity of its importance really hit home,” said Joshua Pawlak, test manager, NASA Glenn. “I thought to myself, on future Artemis missions, astronauts will be inside Orion heading to the Moon, and they’ll be depending on it for survival.” Pawlak was a mechanical test engineer when Orion made its first trip to the Sandusky facility. He participated in planning and coordinating testing of the vehicle and trained personnel. He managed the vehicle from the moment it arrived, through testing, and up until it departed for NASA’s Kennedy Space Center in Florida. Joshua Pawlak poses in front of the Artemis I Space Launch System rocket on Nov. 16, 2022, in Cape Canaveral, Florida. Credit: Joshua Pawlak “When it returned, I felt like I had a small part in this really big and exciting thing,” Pawlak said. “Seeing it come back blackened and scarred from the harsh environment of space was incredible. Space is not a friendly space, and I felt proud knowing that if there were astronauts on that vehicle, they would have survived. After the Orion test article departs from Glenn, it will head to Kennedy for additional testing. “When Artemis II launches and those astronauts are sitting on board, I’ll know that I did everything I could to ensure the vehicle is ready for them and going to perform as expected,” Pawlak said. “That’s why I do what I do.” Explore More 2 min read Station Science Top News: Dec. 13, 2024 Article 17 hours ago 3 min read NASA Sees Progress on Starlab Commercial Space Station Development Article 17 hours ago 7 min read NASA Kennedy Top 24 Stories of 2024 Article 5 days ago View the full article

X-rays are radiated by matter hotter than one million Kelvin, and high-resolution X-ray spectroscopy can tell us about the composition of the matter and how fast and in what direction it is moving. Quantum calorimeters are opening this new window on the Universe. First promised four decades ago, the quantum-calorimeter era of X-ray astronomy has finally dawned. Photo of the XRISM/Resolve quantum-calorimeter array in its storage container prior to integration into the instrument. The 6×6 array, 5 mm on a side, consists of independent detectors – each one a thermally isolated silicon thermistor with a HgTe absorber. The spectrometer consisting of this detector and other essential technologies separates astrophysical X-ray spectra into about 2400 resolution elements, which can be thought of as X-ray colors.NASA GSFC A quantum calorimeter is a device that makes precise measurements of energy quanta by measuring the temperature change that occurs when a quantum of energy is deposited in an absorber with low heat capacity. The absorber is attached to a thermometer that is somewhat decoupled from a heat sink so that the sensor can heat up and then cool back down again. To reduce thermodynamic noise and the heat capacity of the sensor, operation at temperatures less than 0.1 K is required. The idea for thermal measurement of small amounts of energy occurred in several places in the world independently when scientists observed pulses in the readout of low-temperature thermometers and infrared detectors. They attributed these spurious signals to passing cosmic-ray particles, and considered optimizing detectors for sensitive measurement of the energy of particles and photons. The idea to develop such sensors for X-ray astronomy was conceived at Goddard Space Flight Center in 1982 when X-ray astronomers were considering instruments to propose for NASA’s planned Advanced X-ray Astrophysics Facility (AXAF). In a fateful conversation, infrared astronomer Harvey Moseley suggested thermal detection could offer substantial improvement over existing solid-state detectors. Using Goddard internal research and development funding, development advanced sufficiently to justify, just two years later, proposing a quantum-calorimeter X-ray Spectrometer (XRS) for inclusion on AXAF. Despite its technical immaturity at the time, the revolutionary potential of the XRS was acknowledged, and the proposal was accepted. The AXAF design evolved over the subsequent years, however, and the XRS was eliminated from its complement of instruments. After discussions between NASA and the Japanese Institute of Space and Astronautical Science (ISAS), a new XRS was included in the instrument suite of the Japanese Astro-E X-ray observatory. Astro-E launched in 2000 but did not reach orbit due to an anomaly in the first stage of the rocket. Astro-E2, a rebuild of Astro-E, was successfully placed in orbit in 2005 and renamed Suzaku, but the XRS instrument ceased operation before observations started due to loss of the liquid helium, an essential part of the detector cooling system, caused by a faulty storage system. A redesigned mission, Astro-H, that included a quantum-calorimeter instrument with a redundant cooling system was successfully launched in 2016 and renamed Hitomi. Hitomi’s Soft X-ray Spectrometer (SXS) obtained high resolution spectra of the Perseus cluster of galaxies and a few other sources before a problem with the attitude control system caused the mission to be lost roughly one month after launch. Even so, Hitomi was the first orbiting observatory to obtain a scientific result using X-ray quantum calorimeters. The spectacular Perseus spectrum generated by the SXS motivated yet another attempt to implement a spaceborne quantum-calorimeter spectrometer. The X-ray Imaging and Spectroscopy Mission (XRISM) was launched in September 2023, with the spectrometer aboard renamed Resolve to represent not only its function but also the resolve of the U.S./Japan collaboration to study the Universe through the window of this new capability. XRISM has been operating well in orbit for over a year. Development of the Sensor Technology Development of the sensor technology employed in Resolve began four decades ago. Note that an X-ray quantum-calorimeter spectrometer requires more than the sensor technology. Other technologies, such as the coolers that provide a The sensors used from XRS through Resolve were all based on silicon-thermistor thermometers and mercury telluride (HgTe) X-ray absorbers. They used arrays consisting of 32 to 36 pixels, each of which was an independent quantum calorimeter. Between Astro-E and Astro-E2, a new method of making the thermistor was developed that significantly reduced its low-frequency noise. Other fabrication advances made it possible to make reproducible connections between absorbers and thermistors and to fit each thermistor and its thermal isolation under its X-ray absorber, making square arrays feasible. Through a Small Business Innovation Research (SBIR) contract executed after the Astro-E2 mission, EPIR Technologies Inc. reduced the specific heat of the HgTe absorbers. Additional improvements made to the cooler of the detector heat sink allowed operation at a lower temperature, which further reduced the specific heat. Together, these changes enabled the pixel width to be increased from 0.64 mm to 0.83 mm while still achieving a lower heat capacity, and thus improving the energy resolution. From Astro-E through Astro-H, the energy resolution for X-rays of energy around 6000 eV improved from 11 eV, to 5.5 eV, to 4 eV. No changes to the array design were made between Astro-H and XRISM. Resolve detector scientist Caroline Kilbourne installing the flight Resolve quantum-calorimeter array into the assembly that provides its electrical, thermal, and mechanical interfaces.NASA GSFC Over the same period, other approaches to quantum-calorimeter arrays optimized for the needs of future missions were developed. The use of superconducting transition-edge sensors (TES) instead of silicon (Si) thermistors led to improved energy resolution, more pixels per array, and multiplexing (a technique that allows multiple signals to be carried on a single wire). Quantum-calorimeter arrays with thousands of pixels are now standard, such as in the NASA contribution to the future European New Advanced Telescope for High-ENergy Astrophysics (newAthena) mission. And quantum calorimeters using paramagnetic thermometers — which unlike TES and Si thermistors require no dissipation of heat in the thermometer for it to be read out — combined with high-density wiring are a promising route for realizing even larger arrays. (See Astrophysics Technology Highlight on these latest developments.) The Resolve instrument aboard XRISM (X-ray Imaging and Spectroscopy Mission) captured data from the center of galaxy NGC 4151, where a supermassive black hole is slowly consuming material from the surrounding accretion disk. The resulting spectrum reveals the presence of iron in the peak around 6.5 keV and the dips around 7 keV, light thousands of times more energetic that what our eyes can see. Background: An image of NGC 4151 constructed from a combination of X-ray, optical, and radio light.Spectrum: JAXA/NASA/XRISM Resolve. Background: X-rays, NASA/CXC/CfA/J.Wang et al.; optical, Isaac Newton Group of Telescopes, La Palma/Jacobus Kapteyn Telescope; radio, NSF/NRAO/VLA Results from Resolve So, what is Resolve revealing about the Universe? Through spectroscopy alone, Resolve allows us to construct images of complex environments where collections of gas and dust with various attributes exist, emitting and absorbing X-rays at energies characteristic of their various compositions, velocities, and temperatures. For example, in the middle of the galaxy known as NCG 4151 (see figure above), matter spiraling into the central massive black hole forms a circular structure that is flat near the black hole, more donut-shaped further out, and, according to the Resolve data, a bit lumpy. Matter near the black hole is heated up to X-ray-emitting temperatures and irradiates the matter in the circular structure. The Resolve spectrum has a bright narrow emission line (peak) from neutral iron atoms that must be coming from colder matter in the circular structure, because hotter material would be ionized, and would have a different emission signature. Nonetheless, the shape of the iron line needs three components to describe it, each coming from a different lump in the circular structure. The presence of absorption lines (dips) in the spectrum provides further detail about the structure of the infalling matter. A second example is the detection of X-ray emission by Resolve from the debris of stars that have exploded, such as N132D (see figure below), that will improve our understanding of the explosion mechanism and how the elements produced in stars get distributed, and allow us to infer the type of star each was before ending in a supernova. Elements are identified by their characteristic emission lines, and shifts of those lines via the Doppler effect tell us how fast the material is moving. XRISM’s Resolve instrument captured data from supernova remnant N132D in the Large Magellanic Cloud to create the most detailed X-ray spectrum of the object ever made. The spectrum reveals peaks associated with silicon, sulfur, argon, calcium, and iron. Inset at right is an image of N132D captured by XRISM’s Xtend instrument.JAXA/NASA/XRISM Resolve and Xtend These results are just the beginning. The rich Resolve data sets are identifying complex velocity structures, rare elements, and multiple temperature components in a diverse ensemble of cosmic objects. Welcome to the quantum calorimeter era! Stay tuned for more revelations! Project Leads: Dr. Caroline Kilbourne, NASA Goddard Space Flight Center (GSFC), for silicon-thermistor quantum calorimeter development from Astro-E2 through XRISM and early TES development. Foundational and other essential leadership provided by Dr. Harvey Moseley, Dr. John Mather, Dr. Richard Kelley, Dr. Andrew Szymkowiak, Mr. Brent Mott, Dr. F. Scott Porter, Ms. Christine Jhabvala, Dr. James Chervenak (GSFC at the time of the work) and Dr. Dan McCammon (U. Wisconsin). Sponsoring Organizations and Programs: The NASA Headquarters Astrophysics Division sponsored the projects, missions, and other efforts that culminated in the development of the Resolve instrument. Explore More 7 min read NASA’s Webb Finds Planet-Forming Disks Lived Longer in Early Universe Article 1 day ago 5 min read NASA DAVINCI Mission’s Many ‘Firsts’ to Unlock Venus’ Hidden Secrets NASA’s DAVINCI probe will be first in the 21st century to brave Venus’ atmosphere as… Article 1 day ago 2 min read Hubble Images a Grand Spiral Article 4 days ago View the full article

NASA/Kim Shiflett In this image from Dec. 11, 2024, the 212-foot-tall SLS (Space Launch System) core stage is lowered into High Bay 2 at the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. With the move to High Bay 2, NASA and Boeing technicians now have 360-degree access to the core stage both internally and externally. The Artemis II test flight, targeted for launch in 2026, will be NASA’s first mission with crew under the Artemis campaign. NASA astronauts Victor Glover, Christina Koch, and Reid Wiseman, as well as CSA (Canadian Space Agency) astronaut Jeremy Hansen, will go on a 10-day journey around the Moon and back. Image credit: NASA/Kim Shiflett View the full article

Benchmarks for solidifying metal alloys Researchers report benchmark data for modeling the growth of specific types of microstructures that form during solidification of metal alloys under different conditions. These microstructures affect the properties of materials and products such as refrigeration devices and solar cells. The ESA (European Space Agency) Columnar-to-Equiaxed Transition in Solidification Processing (CETSOL) investigation studied the processes of metal alloy solidification and the crystal patterns that form as liquids transition to solids. Results could improve ground-based development of lightweight, high-performance structural materials for space and ground applications. Microgravity is key to this research because it eliminates influences of gravity during solidification and allows researchers to control turbulence and convection. European Space Agency (ESA) astronaut Frank De Winne works on the Columnar-to-Equiaxed Transition in Solidification Processing (CETSOL) investigation in the U.S. Destiny Laboratory.NASA Composite materials shield against radiation, other hazards Researchers found no degradation in two multifunctional radiation shielding composite materials after exposure to space. This finding suggests that composite materials with a surface layer and a coating could protect crews on future missions from radiation and other hazards of space. Materials ISS Experiment Flight Facility (MISSE-FF) continued a series of investigations examining how exposure to space affects materials and material configurations used for space missions. The MISSE-13 suite of materials included a multifunctional composite material for shielding crew members in habitats and spacecraft beyond low Earth orbit against radiation, atomic oxygen, and temperature extremes. An image of the Materials ISS Experiment Flight Facility (MISSE-FF) platform used for MISSE experiments.NASA Modeling the use of boiling to transfer heat Researchers developed an algorithm to determine the amount of heat transferred via boiling of a liquid and showed that maximum heat flow occurs where the bubble contacts the surface and the liquid. This finding could inform design of thermal control systems for spacecraft and for cooling electronics and other applications on Earth. ESA’s Multiscale Boiling examined the dynamics of heat transfer via boiling, which generates vapor bubbles that lift heat from a surface. This technique is less efficient in microgravity because boiling happens more slowly, and bubbles remain near the surface in the absence of buoyancy. But microgravity also makes it possible to observe effects that are too fast and too small to be measured under normal gravity conditions, helping scientists understand the dynamics of boiling heat transfer. ESA astronaut Luca Parmitano works on the Multiscale Boiling hardware aboard the International Space Station. ESA/Luca ParmitanoView the full article

3 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) A digital rendering of the Starlab, which includes a large habitation and laboratory module with a smaller service module for power and propulsion.Credits: Starlab A NASA-funded commercial space station, Starlab, recently completed four key developmental milestones, marking substantial progress in the station’s design and operational readiness. The four milestones are part of a NASA Space Act Agreement awarded in 2021 and focused on reviews of the habitat structural test article preliminary design, systems integration, integrated operations, and a habitat structural test plan. “These milestone achievements are great indicators to reflect Starlab’s commitment to the continued efforts and advancements of their commercial destination,” said Angela Hart, program manager for NASA’s Commercial Low Earth Orbit Development Program. “As we look forward to the future of low Earth orbit, every successful milestone is one step closer to creating a dynamic and robust commercialized low Earth orbit.” The commercial space station is designed to launch on a single flight and includes a large habitation and laboratory module with a smaller service module for power and propulsion. Earlier this year, Starlab Space completed a structural test article preliminary design review, supported by NASA. The structural test article is an engineering development unit of the station’s habitation module, which is where astronauts will spend most of their time living and working aboard the future commercial destination. An engineering development unit is a physical model that is used to test and verify the design of a project, such as a space station. A digital rendering of the Starlab free-flying commercial destination, which continues to be developed as part of a Space Act Agreement with NASACredits: Starlab Starlab also recently shared a test plan for the structural test article, which included defining qualification tests of the development unit from welding verifications to proof pressure and static load testing, among others. During proof pressure tests, a spacecraft component or system is pressurized to a significantly higher than normal operating pressure to verify its structural integrity, and a static load test measures the response of a component or system under an applied load. In addition, Starlab completed integration operations and systems integration reviews. These reviews included updates on system and station architecture, segment interfaces, and program goals, as well as a comprehensive look into the program’s requirements. Starlab also is set to complete a preliminary design review and phase 1 safety review by the end of the year. This review is meant to demonstrate that the station’s design meets system requirements, including human spaceflight verification, with acceptable risk. The safety review will summarize the current design and general safety approach for the destination. NASA is supporting the design and development of multiple commercial space stations, including Starlab, through funded and unfunded agreements. The current design and development phase will be followed by the procurement of services from one or more companies, where NASA aims to be one of many customers for low Earth orbit destinations. NASA’s low Earth orbit microgravity strategy builds on the agency’s extensive human spaceflight experience to advance future scientific and exploration goals. As the International Space Station nears the end of operations, NASA plans to transition to a new low Earth orbit model to continue leveraging microgravity benefits. Through commercial partnerships, NASA aims to maintain its leadership in microgravity research and ensure continued benefits for humanity. Learn more about NASA’s low Earth orbit microgravity strategy at: https://www.nasa.gov/leomicrogravitystrategy News Media Contacts: Claire O’Shea Headquarters, Washington 202-358-1100 claire.a.o’shea@nasa.gov Anna Schneider Johnson Space Center, Houston 281-483-5111 anna.c.schneider@nasa.gov Keep Exploring Discover Related Topics Commercial Destinations in Low Earth Orbit Low Earth Orbit Economy Commercial Space Commercial Use of the International Space Station View the full article

Caption: An artist’s concept of the International Space Station orbiting Earth. In the distance is the Moon, and a red star representing Mars.Credit: NASA As part of the agency’s efforts to enable broader use of space, NASA has released its final goals and objectives for low Earth orbit, defining the long-term approach toward advancing microgravity science, technology, and exploration for the benefit of all. Developed with input from a wide range of stakeholders, NASA’s Low Earth Orbit Microgravity Strategy will guide the agency toward the next generation of continuous human presence in orbit, enable greater economic growth, and maintain international partnerships. “As we near the retirement of the International Space Station in 2030, these objectives are a pivotal next step in solidifying U.S. leadership in space,” said NASA Deputy Administrator Pam Melroy. “Our consultation with industry, academia, and international partners has helped refine a visionary roadmap for our future in low Earth orbit, which will be enabled by a continuous human presence. Together, we are ensuring that the benefits of exploring space continue to grow – advancing science, innovation, and opportunities for all, while preparing for humanity’s next giant leap of exploring the Moon, Mars and beyond.” In early 2024, NASA initiated a planning process that included drafting an initial set of goals and objectives for the low Earth orbit microgravity environment and seeking feedback from its workforce, government partners, industry, academia, international space agencies, and the public. The agency reviewed more than 1,800 comments and hosted two workshops, resulting in essential adjustments to the goals and objectives to better align with its partners. The final framework includes 13 goals and 44 objectives across seven key areas: commercial low Earth orbit infrastructure, operations, science, research and technology development for exploration, international cooperation, workforce development and science, technology, engineering, and mathematics (STEM) engagement, and public engagement. The agency’s efforts in low Earth orbit are integral to its broader ambitions for deep space exploration. The microgravity environment in low Earth orbit provides a cost-effective, easily accessible proving ground for technologies and research necessary for human missions to explore the solar system. With most of the journey to Moon and Mars occurring in microgravity, the objectives give the opportunity to continue vital human research, test future exploration systems, and retain the critical skills needed to operate in the microgravity environment. “These finalized objectives represent a clear path forward as NASA transitions from the International Space Station to a new era of commercial space stations,” said Robyn Gatens, director of the International Space Station and acting director of commercial spaceflight. “Low Earth orbit will remain a hub for scientific discovery, technological advancement, and international cooperation, while making strategic investments in a commercial space ecosystem that benefits not just NASA, but the entire space community.” The low Earth orbit microgravity goals and objectives, combined with significant stakeholder engagement, drive NASA’s need to maintain an unbroken, continuous heartbeat of humans in the commercial low Earth orbit destinations era. NASA requires long-duration flights to mitigate risk for future trips to the Red Planet. To ensure reliable access to and use of low Earth orbit, a diversity of providers operating on a regular cadence is essential. The objectives will also guide the development of requirements for future commercial space stations that will support NASA’s missions, while reducing risk for human missions to Mars, preserving operational skills, advancing critical scientific research, and sustaining engagement with international and commercial partners. “Collaboration and consultation remain a cornerstone of our low Earth orbit strategy,” said John Keefe, director of cross-agency strategy integration at NASA. “The objectives we’ve established will help NASA craft a work plan that ensures NASA is positioned to meet current and future needs and prioritizes the development of critical capabilities for low Earth orbit.” The low Earth orbit microgravity goals and objectives are available online at: https://go.nasa.gov/3DsMtNI -end- Amber Jacobson Headquarters, Washington 202-358-1600 amber.c.jacobson@nasa.gov Share Details Last Updated Dec 16, 2024 LocationNASA Headquarters Related TermsPamela A. Melroy View the full article

4 Min Read Celebrating 20 Years: Night Sky Network 2023 Partial Solar Eclipse Viewing at Camino Real Marketplace with the View the Santa Barbara Astronomical Unit. Credits: Photo by Chuck McPartlin by Vivan White & Kat Troche of the Astronomical Society of the Pacific NASA’s Night Sky Network is one of the most successful and longstanding grassroots initiatives for public engagement in astronomy education. Started in 2004 with the PlanetQuest program out of the Jet Propulsion Laboratory and currently supported by NASA’s Science Activation, the Night Sky Network (NSN) plays a critical role in fostering science literacy through astronomy. By connecting NASA science and missions to support amateur astronomy clubs, NSN leverages the expertise and enthusiasm of club members, who bring this knowledge to schools, museums, observatories, and other organizations, bridging the gap between NASA science and the public. Now in its 20th year, NSN supports over 400 astronomy clubs dedicated to bringing the wonder of the night sky to their communities across the US, connecting with 7.4 million people across the United States and its territories since its inception. International Observe the Moon Night, September 2024 Credit: Oklahoma City Astronomy Club Humble Beginnings It all started with an idea – astronomy clubs already do great outreach, and club members know a lot of astronomy (shown definitively by founder Marni Berendsen’s research), and they love to talk with the public – how could NASA support these astronomy clubs in sharing current research and ideas using informal activities designed for use in the places that amateur astronomers do outreach. Thanks to funding through NASA JPL’s PlanetQuest public engagement program, the Night Sky Network was born in 2004, with more than 100 clubs joining the first year. Raynham Public Observing Night, February 2004 Credit: Astronomical Society of Southern New England/Mark Gibson As quoted from the first NSN news article, “NASA is very excited to be working closely with the amateur astronomy community,” said Michael Greene, current Director for Communications and Education and former head of public engagement for JPL’s Navigator Program and PlanetQuest initiatives, “Amateurs want more people to look at the sky and understand astronomy, and so do we. Connecting what we do with our missions to the sense of wonder that comes when you look up at the stars and the planets is one of our long-term objectives. We have a strong commitment to inspiring the next generation of explorers. Lending support to the energy that the amateur astronomy community brings to students and the public will allow NASA to reach many more people.” Taking off like a rocket, Night Sky Network had over 100 clubs registered on their website within the first year. The Toolkits Outreach Toolkits were developed to assist clubs with their endeavors. These kits included educational materials, hands-on activities, and guides to explaining topics in an accessible way. So far, 13 toolkits have been created with topics ranging from the scale of the universe to how telescopes work. To qualify for these free Toolkits, clubs must be active in their communities, hosting two outreach events every three months or five outreach events within a calendar year. Supplemental toolkits were also created based on special events, such as the solar eclipses and the 50th anniversary of Apollo’s Moon landing. A new toolkit is in development to teach audiences about solar science, and NSN is on track to support clubs well into the future. Rye Science Day, October 2014 Credit: Southern Colorado Astronomical Society/Malissa Pacheco NSN also hosts archived video trainings on these toolkits and other topics via its YouTube channel and a monthly webinar series with scientists from various institutions worldwide. Lastly, a monthly segment called Night Sky Notes is produced for clubs to share with their audiences via newsletters and mailing lists. Sharing the Universe In 2007, a National Science Foundation grant provided funding for further research into astronomy club needs. From that came three resources for clubs – the Growing Your Astronomy Club and Getting Started with Outreach video series, as well as an updated website with a national calendar and club and event coordination. Now you can find hundreds of events each month across the country, including virtual events that you can join from anywhere. Night Sky Network: Current and Future Map of Night Sky Network clubs within the United States, as of November 2024 Credit: Night Sky Network/Google Maps View the full article

Curiosity Navigation Curiosity Home Mission Overview Where is Curiosity? Mission Updates Science Overview Instruments Highlights Exploration Goals News and Features Multimedia Curiosity Raw Images Images Videos Audio Mosaics More Resources Mars Missions Mars Sample Return Mars Perseverance Rover Mars Curiosity Rover MAVEN Mars Reconnaissance Orbiter Mars Odyssey More Mars Missions The Solar System The Sun Mercury Venus Earth The Moon Mars Jupiter Saturn Uranus Neptune Pluto & Dwarf Planets Asteroids, Comets & Meteors The Kuiper Belt The Oort Cloud 2 min read Sols 4393-4395: Weekend Work at the Base of Texoli Butte Caption: NASA’s Mars rover Curiosity acquired this image using its Left Navigation Camera on Dec. 12, 2024, at 23:15:47 UTC — sol 4391, or Martian day 4,391, of the Mars Science Laboratory mission. NASA/JPL-Caltech Earth planning date: Friday, Dec. 13, 2024 Curiosity continues to make great progress over the Mount Sharp bedrock and will spend the weekend investigating the northern base of the “Texoli” butte. The science team back on Earth enjoyed taking in the beautiful views of nearby “Wilkerson” butte and “Gould Mesa” while digging into the workspace in front of us to create a hefty to-do list for our roving geologist on Mars. The rocks at the rover’s wheels today consisted of dusty, pale-colored bedrock that had a range of textures. We used the dust removal tool (DRT), MAHLI, and APXS instruments to characterize lighter, smooth bedrock at “Calabasas Peak,” and slightly darker, rougher bedrock at “Triunfo Canyon.” The ChemCam team used the Laser-Induced Breakdown Spectroscopy (LIBS) to analyze the composition of the rougher bedrock at “Chilao” and a vein that cuts through the bedrock at “Ojai,” and Mastcam provided the supporting documentation images of each target. The Mastcam team assembled a variety of images and mosaics in the workspace and beyond. Two stereo mosaics documented the network of fractures in the bedrock at “Fern Dell” while a stereo mosaic of “Amir’s Garden” will be used to observe possible deformation in the rocks. A few single-frame images of troughs in the workspace will be used to investigate active surface processes. Further in the distance, Mastcam created a stereo mosaic of “Jawbone Canyon” to image potential aeolian ripples, and supported a ChemCam long-distance RMI image of a crater in the drive direction called “Grant Lake.” Lastly, ChemCam planned a long-distance RMI image to get a closer look at the structures within Gould Mesa. Curiosity will drive 44 meters (about 144 feet) to the west over the weekend as we continue to close in on the intriguing boxwork structures. Lastly, the environmental group rounded out the plan with activities including cloud observations, dust-devil monitoring, and surveys of the amount of dust in the atmosphere. Written by: Sharon Wilson Purdy, Planetary Geologist at the Smithsonian National Air and Space Museum Share Details Last Updated Dec 16, 2024 Related Terms Blogs Explore More 3 min read Sols 4391-4392: Rounding the Bend Article 4 days ago 3 min read Sols 4389-4390: A Wealth of Ripples, Nodules and Veins Article 5 days ago 2 min read Looking Out for ‘Lookout Hill’ Article 6 days ago Keep Exploring Discover More Topics From NASA Mars Mars is the fourth planet from the Sun, and the seventh largest. It’s the only planet we know of inhabited… All Mars Resources Explore this collection of Mars images, videos, resources, PDFs, and toolkits. Discover valuable content designed to inform, educate, and inspire,… Rover Basics Each robotic explorer sent to the Red Planet has its own unique capabilities driven by science. Many attributes of a… Mars Exploration: Science Goals The key to understanding the past, present or future potential for life on Mars can be found in NASA’s four… View the full article

From left to right, Thailand’s Minister of Higher Education, Science, Research and Innovation Supamas Isarabhakdi, Executive Director of GISTDA Pakorn Apaphant, U.S. Ambassador to Thailand Robert Godec, and Pol. Gen. Suwat Jangyodsuk, Chairman of GISTDA, pose for a photo after the signing of the Artemis Accords at a signing ceremony in Bangkok, Thailand on Monday, Dec. 16, 2024. Credit: U.S. State Department Following a signing ceremony Monday in Thailand’s capital city, Bangkok, NASA congratulates Thailand as the 51st nation to commit to the safe and responsible exploration of space that benefits humanity. “Thailand’s commitment to the Artemis Accords will enhance the country’s engagement with NASA and the international community,” said NASA Administrator Bill Nelson. “By signing the accords, Thailand builds upon an important foundation and shows great leadership for the open, responsible and peaceful exploration of space.” Pakorn Apaphant, the executive director of Thailand’s Geo-Informatics and Space Technology Development Agency (GISTDA) signed the Artemis Accords on behalf of Thailand. Thailand’s Minister of Higher Education, Science, Research and Innovation Supamas Isarabhakdi and U.S. Ambassador to Thailand Robert Godec also participated in the ceremony. Nelson contributed the final remarks in a pre-recorded video message. “Thailand will enter the golden age of space exploration in full force,” said Apaphant of the country’s signing. In 2020, the United States, led by NASA and the U.S. Department of State, and seven other initial signatory nations established the Artemis Accords, a set of principles promoting the beneficial use of space for humanity. The Artemis Accords are grounded in the Outer Space Treaty and other agreements including the Registration Convention, the Rescue and Return Agreement, as well as best practices and norms of responsible behavior that NASA and its partners have supported, including the public release of scientific data. On Dec. 11, NASA celebrated 50 countries signing the Artemis Accords at NASA Headquarters with the signing of Austria. More countries are expected to sign in the weeks and months ahead. Learn more about the Artemis Accords at: https://www.nasa.gov/artemis-accords -end- Meira Bernstein / Elizabeth Shaw Headquarters, Washington 202-358-1600 meira.b.bernstein@nasa.gov / elizabeth.a.shaw@nasa.gov Share Details Last Updated Dec 16, 2024 LocationNASA Headquarters Related TermsOffice of International and Interagency Relations (OIIR) View the full article

Portrait, Elaine Ho, Thursday, Jan. 23, 2020, at NASA Headquarters in Washington. Photo Credit: (NASA/Aubrey Gemignani) NASA Administrator Bill Nelson announced Monday Elaine P. Ho will serve as the next associate administrator of NASA’s Office of STEM Engagement (OSTEM), where she will lead the agency’s efforts to inspire Artemis Generation students and educators in science, technology, engineering, and mathematics (STEM). The role, based out of the agency’s headquarters in Washington, is effective immediately. Ho also will remain the associate administrator for the agency’s Office of Diversity and Equal Opportunity while a permanent replacement is sought. She will succeed Mike Kincaid, who retired from the agency in November after 37 years with NASA. Kris Brown, who has been serving as acting associate administrator for OSTEM, will return to her position as the office’s deputy associate administrator for strategy and integration. “At NASA, we know STEM education is critical for building a strong and competent future workforce,” said Nelson. “Under Elaine’s leadership, we will continue to empower students, educators, and communities to reach for the stars and tackle the challenges of tomorrow.” In her role as associate administrator for NASA’s Office of Diversity and Equal Opportunity, she played an instrumental part in fostering a NASA culture that values the unique backgrounds of our workforce to bolster innovation and drive mission success. Prior to that role, she served as NASA’s deputy associate administrator for OSTEM, responsible for leading and managing a wide-ranging portfolio of projects and initiatives that benefit students, universities, and educational institutions across the country. Before joining NASA, Ho held several roles at the White House, including senior policy advisor for the Let Girls Learn initiative in the Office of the First Lady and chief of staff of the U.S. Digital Service. In 2021, she returned to the White House on a year-long detail, serving as deputy chief of staff for workforce in the Office of Science and Technology Policy and director of Space STEM Policy for the Vice President’s National Space Council. Prior to her federal service career, Ho was a practicing attorney, specializing in employment law. She also served four years of active duty as a criminal prosecutor in the U.S. Air Force and continues her service as a colonel in the Air Force Reserves. Ho holds a civil engineering degree from Duke University and a Juris Doctor from the University of Florida. For information about NASA and agency programs, visit: https://www.nasa.gov -end- Abbey Donaldson Headquarters, Washington 202-358-1600 abbey.a.donaldson@nasa.gov View the full article

5 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) Seen at the center of this image, NASA’s retired InSight Mars lander was captured by the agency’s Mars Reconnaissance Orbiter using its High-Resolution Imagine Science Experiment (HiRISE) camera on Oct. 23, 2024.NASA/JPL-Caltech/University of Arizona New images taken from space show how dust on and around InSight is changing over time — information that can help scientists learn more about the Red Planet. NASA’s Mars Reconnaissance Orbiter (MRO) caught a glimpse of the agency’s retired InSight lander recently, documenting the accumulation of dust on the spacecraft’s solar panels. In the new image taken Oct. 23 by MRO’s High-Resolution Imaging Science Experiment (HiRISE) camera, InSight’s solar panels have acquired the same reddish-brown hue as the rest of the planet. After touching down in November 2018, the lander was the first to detect the Red Planet’s marsquakes, revealing details of the crust, mantle, and core in the process. Over the four years that the spacecraft collected science, engineers at NASA’s Jet Propulsion Laboratory in Southern California, which led the mission, used images from InSight’s cameras and MRO’s HiRISE to estimate how much dust was settling on the stationary lander’s solar panels, since dust affected its ability to generate power. NASA retired InSight in December 2022, after the lander ran out of power and stopped communicating with Earth during its extended mission. But engineers continued listening for radio signals from the lander in case wind cleared enough dust from the spacecraft’s solar panels for its batteries to recharge. Having detected no changes over the past two years, NASA will stop listening for InSight at the end of this year. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video NASA’s InSight Mars lander acquires the same reddish-brown hue as the rest of the planet in a set of images from 2018 to 2024 that were captured by the agency’s Mars Reconnaissance Orbiter using its High-Resolution Imagine Science Experiment (HiRISE) camera.NASA/JPL-Caltech/University of Arizona Scientists requested the recent HiRISE image as a farewell to InSight, as well as to monitor how its landing site has changed over time. “Even though we’re no longer hearing from InSight, it’s still teaching us about Mars,” said science team member Ingrid Daubar of Brown University in Providence, Rhode Island. “By monitoring how much dust collects on the surface — and how much gets vacuumed away by wind and dust devils — we learn more about the wind, dust cycle, and other processes that shape the planet.” Dust Devils and Craters Dust is a driving force across Mars, shaping both the atmosphere and landscape. Studying it helps scientists understand the planet and engineers prepare for future missions (solar-powered and otherwise), since dust can get into sensitive mechanical parts. When InSight was still active, scientists matched MRO images of dust devil tracks winding across the landscape with data from the lander’s wind sensors, finding these whirling weather phenomena subside in the winter and pick up again in the summer. The imagery also helped with the study of meteoroid impacts on the Martian surface. The more craters a region has, the older the surface there is. (This isn’t the case with Earth’s surface, which is constantly recycled as tectonic plates slide over one another.) The marks around these craters fade with time. Understanding how fast dust covers them helps to ascertain a crater’s age. Another way to estimate how quickly craters fade has been studying the ring of blast marks left by InSight’s retrorocket thrusters during landing. Much more prominent in 2018, those dark marks are now returning to the red-brown color of the surrounding terrain. HiRISE has captured many other spacecraft images, including those of NASA’s Perseverance and Curiosity rovers, which are still exploring Mars, as well as inactive missions, like the Spirit and Opportunity rovers and the Phoenix lander. “It feels a little bittersweet to look at InSight now. It was a successful mission that produced lots of great science. Of course, it would have been nice if it kept going forever, but we knew that wouldn’t happen,” Daubar said. More About MRO and InSight The University of Arizona, in Tucson, operates HiRISE, which was built by Ball Aerospace & Technologies Corp., in Boulder, Colorado. A division of Caltech in Pasadena, California, JPL manages the MRO project and managed InSight for NASA’s Science Mission Directorate, Washington. The InSight mission was part of NASA’s Discovery Program, managed by the agency’s Marshall Space Flight Center in Huntsville, Alabama. Lockheed Martin Space in Denver built the InSight spacecraft, including its cruise stage and lander, and supported spacecraft operations for the mission. A number of European partners, including France’s Centre National d’Études Spatiales (CNES) and the German Aerospace Center (DLR), supported the InSight mission. CNES provided the Seismic Experiment for Interior Structure (SEIS) instrument to NASA, with the principal investigator at IPGP (Institut de Physique du Globe de Paris). Significant contributions for SEIS came from IPGP; the Max Planck Institute for Solar System Research (MPS) in Germany; the Swiss Federal Institute of Technology (ETH Zurich) in Switzerland; Imperial College London and Oxford University in the United Kingdom; and JPL. DLR provided the Heat Flow and Physical Properties Package (HP3) instrument, with significant contributions from the Space Research Center (CBK) of the Polish Academy of Sciences and Astronika in Poland. Spain’s Centro de Astrobiología (CAB) supplied the temperature and wind sensors. For more about the missions: https://science.nasa.gov/mission/insight science.nasa.gov/mission/mars-reconnaissance-orbiter News Media Contacts Andrew Good Jet Propulsion Laboratory, Pasadena, Calif. 818-393-2433 andrew.c.good@jpl.nasa.gov Karen Fox / Molly Wasser NASA Headquarters, Washington 202-358-1600 karen.c.fox@nasa.gov / molly.l.wasser@nasa.gov 2024-175 Share Details Last Updated Dec 16, 2024 Related TermsInSight (Interior Exploration using Seismic Investigations, Geodesy and Heat Transport)Jet Propulsion LaboratoryMarsMars Reconnaissance Orbiter (MRO)Radioisotope Power Systems (RPS) Explore More 5 min read NASA’s Perseverance Rover Reaches Top of Jezero Crater Rim Article 4 days ago 5 min read NASA’s Juno Mission Uncovers Heart of Jovian Moon’s Volcanic Rage Article 4 days ago 5 min read NASA-DOD Study: Saltwater to Widely Taint Coastal Groundwater by 2100 Article 5 days ago Keep Exploring Discover Related Topics Missions Humans in Space Climate Change Solar System View the full article

Webb Webb News Latest News Latest Images Blog (offsite) Awards X (offsite – login reqd) Instagram (offsite – login reqd) Facebook (offsite- login reqd) Youtube (offsite) Overview About Who is James Webb? Fact Sheet Impacts+Benefits FAQ Science Overview and Goals Early Universe Galaxies Over Time Star Lifecycle Other Worlds Observatory Overview Launch Orbit Mirrors Sunshield Instrument: NIRCam Instrument: MIRI Instrument: NIRSpec Instrument: FGS/NIRISS Optical Telescope Element Backplane Spacecraft Bus Instrument Module Multimedia About Webb Images Images Videos What is Webb Observing? 3d Webb in 3d Solar System Podcasts Webb Image Sonifications Team International Team People Of Webb More For the Media For Scientists For Educators For Fun/Learning 7 Min Read NASA’s Webb Finds Planet-Forming Disks Lived Longer in Early Universe This is a James Webb Space Telescope image of NGC 346, a massive star cluster in the Small Magellanic Cloud, a dwarf galaxy that is one of the Milky Way’s nearest neighbors. Credits: NASA, ESA, CSA, STScI, Olivia C. Jones (UK ATC), Guido De Marchi (ESTEC), Margaret Meixner (USRA) NASA’s James Webb Space Telescope just solved a conundrum by proving a controversial finding made with the agency’s Hubble Space Telescope more than 20 years ago. In 2003, Hubble provided evidence of a massive planet around a very old star, almost as old as the universe. Such stars possess only small amounts of heavier elements that are the building blocks of planets. This implied that some planet formation happened when our universe was very young, and those planets had time to form and grow big inside their primordial disks, even bigger than Jupiter. But how? This was puzzling. To answer this question, researchers used Webb to study stars in a nearby galaxy that, much like the early universe, lacks large amounts of heavy elements. They found that not only do some stars there have planet-forming disks, but that those disks are longer-lived than those seen around young stars in our Milky Way galaxy. “With Webb, we have a really strong confirmation of what we saw with Hubble, and we must rethink how we model planet formation and early evolution in the young universe,” said study leader Guido De Marchi of the European Space Research and Technology Centre in Noordwijk, Netherlands. Image A: Protoplanetary Disks in NGC 346 (NIRCam Image) This is a James Webb Space Telescope image of NGC 346, a massive star cluster in the Small Magellanic Cloud, a dwarf galaxy that is one of the Milky Way’s nearest neighbors. With its relative lack of elements heavier than hydrogen and helium, the NGC 346 cluster serves as a nearby proxy for studying stellar environments with similar conditions in the early, distant universe. Ten, small, yellow circles overlaid on the image indicate the positions of the ten stars surveyed in this study. NASA, ESA, CSA, STScI, Olivia C. Jones (UK ATC), Guido De Marchi (ESTEC), Margaret Meixner (USRA) A Different Environment in Early Times In the early universe, stars formed from mostly hydrogen and helium, and very few heavier elements such as carbon and iron, which came later through supernova explosions. “Current models predict that with so few heavier elements, the disks around stars have a short lifetime, so short in fact that planets cannot grow big,” said the Webb study’s co-investigator Elena Sabbi, chief scientist for Gemini Observatory at the National Science Foundation’s NOIRLab in Tucson. “But Hubble did see those planets, so what if the models were not correct and disks could live longer?” To test this idea, scientists trained Webb on the Small Magellanic Cloud, a dwarf galaxy that is one of the Milky Way’s nearest neighbors. In particular, they examined the massive, star-forming cluster NGC 346, which also has a relative lack of heavier elements. The cluster served as a nearby proxy for studying stellar environments with similar conditions in the early, distant universe. Hubble observations of NGC 346 from the mid 2000s revealed many stars about 20 to 30 million years old that seemed to still have planet-forming disks around them. This went against the conventional belief that such disks would dissipate after 2 or 3 million years. “The Hubble findings were controversial, going against not only empirical evidence in our galaxy but also against the current models,” said De Marchi. “This was intriguing, but without a way to obtain spectra of those stars, we could not really establish whether we were witnessing genuine accretion and the presence of disks, or just some artificial effects.” Now, thanks to Webb’s sensitivity and resolution, scientists have the first-ever spectra of forming, Sun-like stars and their immediate environments in a nearby galaxy. “We see that these stars are indeed surrounded by disks and are still in the process of gobbling material, even at the relatively old age of 20 or 30 million years,” said De Marchi. “This also implies that planets have more time to form and grow around these stars than in nearby star-forming regions in our own galaxy.” Image B: Protoplanetary Disks in NGC 346 Spectra (NIRSpec) This graph shows, on the bottom left in yellow, a spectrum of one of the 10 target stars in this study (as well as accompanying light from the immediate background environment). Spectral fingerprints of hot atomic helium, cold molecular hydrogen, and hot atomic hydrogen are highlighted. On the top left in magenta is a spectrum slightly offset from the star that includes only light from the background environment. This second spectrum lacks a spectral line of cold molecular hydrogen. On the right is the comparison of the top and bottom lines. This comparison shows a large peak in the cold molecular hydrogen coming from the star but not its nebular environment. Also, atomic hydrogen shows a larger peak from the star. This indicates the presence of a protoplanetary disk immediately surrounding the star. The data was taken with the microshutter array on the James Webb Space Telescope’s NIRSpec (Near-Infrared Spectrometer) instrument. Illustration: NASA, ESA, CSA, Joseph Olmsted (STScI) A New Way of Thinking This finding refutes previous theoretical predictions that when there are very few heavier elements in the gas around the disk, the star would very quickly blow away the disk. So the disk’s life would be very short, even less than a million years. But if a disk doesn’t stay around the star long enough for the dust grains to stick together and pebbles to form and become the core of a planet, how can planets form? The researchers explained that there could be two distinct mechanisms, or even a combination, for planet-forming disks to persist in environments scarce in heavier elements. First, to be able to blow away the disk, the star applies radiation pressure. For this pressure to be effective, elements heavier than hydrogen and helium would have to reside in the gas. But the massive star cluster NGC 346 only has about ten percent of the heavier elements that are present in the chemical composition of our Sun. Perhaps it simply takes longer for a star in this cluster to disperse its disk. The second possibility is that, for a Sun-like star to form when there are few heavier elements, it would have to start from a larger cloud of gas. A bigger gas cloud will produce a bigger disk. So there is more mass in the disk and therefore it would take longer to blow the disk away, even if the radiation pressure were working in the same way. “With more matter around the stars, the accretion lasts for a longer time,” said Sabbi. “The disks take ten times longer to disappear. This has implications for how you form a planet, and the type of system architecture that you can have in these different environments. This is so exciting.” The science team’s paper appears in the Dec. 16 issue of The Astrophysical Journal. Image C: NGC 346: Hubble and Webb Observations Image Before/After 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). The Hubble Space Telescope has been operating for over three decades and continues to make ground-breaking discoveries that shape our fundamental understanding of the universe. Hubble is a project of international cooperation between NASA and ESA (European Space Agency). NASA’s Goddard Space Flight Center in Greenbelt manages the telescope and mission operations. Lockheed Martin Space, based in Denver also supports mission operations at Goddard. The Space Telescope Science Institute in Baltimore, which is operated by the Association of Universities for Research in Astronomy, conducts Hubble science operations for NASA. Downloads Right click any image to save it or open a larger version in a new tab/window via the browser’s popup menu. View/Download all image products at all resolutions for this article from the Space Telescope Science Institute. View/Download the science paper from the The Astrophysical Journal. Media Contacts Laura Betz – laura.e.betz@nasa.gov NASA’s Goddard Space Flight Center, Greenbelt, Md. Ann Jenkins – jenkins@stsci.edu, Christine Pulliam – cpulliam@stsci.edu Space Telescope Science Institute, Baltimore, Md. Related Information Past releases on NGC 346: Webb NIRCam image and MIRI image Article: Highlighting other Webb Star Formation Discoveries Simulation Video: Planetary Systems and Origins of Life Animation Video: Exploring star and planet formation (English), and in Spanish More Images of NGC 346 on AstroPix More Webb News More Webb Images Webb Science Themes Webb Mission Page Related For Kids What is a planet? What is the Webb Telescope? SpacePlace for Kids En Español ¿Qué es un planeta? Ciencia de la NASA NASA en español Space Place para niños Keep Exploring Related Topics James Webb Space Telescope Webb is the premier observatory of the next decade, serving thousands of astronomers worldwide. It studies every phase in the… Stars Galaxies Universe Share Details Last Updated Dec 15, 2024 Editor Marty McCoy Contact Laura Betz laura.e.betz@nasa.gov Related Terms Astrophysics Galaxies Galaxies, Stars, & Black Holes Goddard Space Flight Center James Webb Space Telescope (JWST) Science & Research Stars The Universe View the full article

5 Min Read NASA DAVINCI Mission’s Many ‘Firsts’ to Unlock Venus’ Hidden Secrets The surface of Venus is an inferno with temperatures hot enough to melt lead. This image is a composite of data from NASA’s Magellan spacecraft and Pioneer Venus Orbiter. Credits: NASA/JPL-Caltech NASA’s DAVINCI — Deep Atmosphere Venus Investigation of Noble gases, Chemistry, and Imaging — mission embodies the spirit of innovation and exploration that its namesake, Leonardo da Vinci, was famous for. Scheduled to launch in the early 2030s, DAVINCI will explore Venus with both a spacecraft and a descent probe. DAVINCI’s probe will be the first in the 21st century to brave Venus’ atmosphere as it descends from above the planet’s clouds down to its surface. Two other missions, NASA’s VERITAS and ESA’s (European Space Agency) Envision, will also explore Venus in the 2030s from the planet’s orbit. The DAVINCI spacecraft will study Venus’ clouds and highlands during two flybys. It also will release a spherical probe, about 3 feet wide, that will plunge through the planet’s thick atmosphere and corrosive clouds, taking measurements and capturing high-resolution images of the Venusian surface as it descends below the clouds. Here are some of DAVINCI’s coming “firsts” in Venus exploration: Exploring Solar System’s One-of-a-Kind Terrain The DAVINCI mission will be the first to closely explore Alpha Regio, a region known as a “tessera.” So far found only on Venus, where they make up about 8% of the surface, tesserae are highland regions similar in appearance to rugged mountains on Earth. Previous missions discovered these features using radar instruments, but of the many international spacecraft that dove through Venus’ atmosphere between 1966 and 1985, none studied or photographed tesserae. Thought to be ancient continents, tesserae like Alpha Regio may be among the oldest surfaces on the planet, offering scientists access to rocks that are billions of years old. By studying these rocks from above Alpha Regio, DAVINCI scientists may learn whether ancient Venus had continents and oceans, and how water may have influenced the surface. Photographing One of the Oldest Surfaces on Venus The DAVINCI probe will capture the first close-up views of Alpha Regio with its infrared and optical cameras; these will also be the first photos of the planet’s surface taken in more than 40 years. With surface temperatures reaching 900° F and air pressure 90 times that of Earth’s, Venus’ harsh environment makes exploration challenging, while its opaque atmosphere obscures direct views. Typically, scientists rely on radar instruments from Earth or Venus-orbiting spacecraft to study its terrain. But DAVINCI’s probe will descend through the atmosphere and below the clouds for a clear view of the mountains and plains. It will capture images comparable to an airplane’s landing view of Earth’s surface. Scientists will use the photos to compile 3D maps of Alpha Regio that will provide more detail than ever of Venus’ terrain, helping them look for rocks that are usually only made in association with water. Unveiling Secrets of Venus’ Mysterious Lower Atmosphere The DAVINCI mission will be the first to analyze the chemical composition of Venus’ lower atmosphere through measurements taken at regular intervals, starting from approximately 90,000 feet above the surface and continuing until just before impact. This region is critical because it contains gases and chemical compounds that may originate from Venus’ lower clouds, surface, or even subsurface. For example, sulfur compounds detected here could indicate whether Venusian volcanoes are currently active or were active in the recent past. Noble gases (like helium or xenon), on the other hand, remain chemically inert and maintain stable concentrations, offering invaluable clues about Venus’ ancient history, such as the planet’s past water inventory. By comparing Venus’ noble gas composition with that of Earth and Mars, scientists can better understand why these planets — despite forming from similar starting materials — evolved into dramatically different worlds. Moreover, DAVINCI’s measurements of isotopes and trace gases in the lower atmosphere will shed light on Venus’ water history, from ancient times to the present, and the processes that triggered the planet’s extreme greenhouse effect. State-of-the-Art Technology to Study Venus in Detail Thanks to modern technology, the DAVINCI probe will be able to do things 1980s-era spacecraft couldn’t. The descent probe will be better equipped than previous probes to protect the sensitive electronics inside of it, as it will be lined on the inside with high-temperature, multi-layer insulation — layers of advanced ceramic and silica fabrics separated by aluminum sheets. Venus’ super thick atmosphere will slow the probe’s descent, but a parachute will also be released to slow it down further. Most Earth-friendly parachute fabrics, like nylon, would dissolve in Venus’ sulfuric acid clouds, so DAVINCI will have to use a different type of material than previous Venus missions did: one that’s resistant to acids and five times stronger than steel. Read More: Old Data Yields New Secrets as NASA’s DAVINCI Preps for Venus Trip By Lauren Colvin, with Lonnie Shekhtman NASA’s Goddard Space Flight Center, Greenbelt, Md. NASA’s Goddard Space Flight Center in Greenbelt, Maryland, is the principal investigator institution for DAVINCI and will perform project management for the mission, provide science instruments, as well as project systems engineering to develop the in-situ probe flight system that will enter the atmosphere of Venus. Goddard also leads the overall science for the mission with an external science team from across the United States. Lockheed Martin Space in Denver, Colorado, will build the carrier/relay spacecraft. DAVINCI is a mission within the Discovery Program, managed by NASA’s Marshall Space Flight Center in Huntsville, Alabama, for the agency’s Science Mission Directorate in Washington. View the full article

NASA Science Live: Parker Solar Probe Nears Historic Close Encounter with the Sun

Credit: NASA NASA has selected FedSync-BFS, LLC of Alexandria, Virginia, to provide administrative services for multiple NASA centers. The Multi-Center Administrative Support Services Contract is a firm-fixed-price and indefinite-delivery/indefinite-quantity contract with a value not to exceed $200 million during a five-year ordering period. The performance period begins April 1, 2025. Contracted work will take place in six NASA centers and facilities, including Johnson Space Center in Houston, Kennedy Space Center in Florida, Marshall Space Flight Center in Huntsville, Alabama, the Michoud Assembly Facility in New Orleans, Stennis Space Center near Bay St. Louis, Mississippi, and the White Sands Test Facility in Las Cruces, New Mexico. The contract will provide administrative support including, but not limited to, general office services, data management services, travel coordination, time and labor collection, property coordination, move coordination, training coordination, information services coordination, customer service, special events coordination, and miscellaneous activities. For information about NASA and other agency programs, visit: https://www.nasa.gov -end- Tiernan Doyle Headquarters, Washington 202-358-1600 tiernan.doyle@nasa.gov Share Details Last Updated Dec 13, 2024 LocationNASA Headquarters Related TermsJohnson Space CenterKennedy Space CenterMarshall Space Flight CenterMichoud Assembly FacilityNASA Centers & FacilitiesStennis Space CenterWhite Sands Test Facility View the full article

NASA/Steve Freeman On Oct. 22, 2024, the latest iteration of an atmospheric probe developed by researchers at NASA’s Armstrong Flight Research Center in Edwards, California, successfully completed a test flight. Building on NASA 1960s research on lifting body aircraft, which use the aircraft’s shape for lift instead of wings, the concept could offer future scientists a potentially better and more economical way to collect data on other planets. Testing demonstrated the shape of the probe works. The atmospheric probe flew after release from a quad-rotor remotely piloted aircraft above Rogers Dry Lake, a flight area adjacent to NASA Armstrong. “I’m ecstatic,” said John Bodylski, atmospheric probe principal investigator at NASA Armstrong. “It was completely stable in flight. We will be looking at releasing it from a higher altitude to keep it flying longer and demonstrate more maneuvers.” See more photos from the test flight. Image credit: Steve Freeman View the full article