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By NASA
2 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
NASA’s C-130, now under new ownership, sits ready for its final departure from NASA’s Wallops Flight Facility in Virginia, on Friday, April 18, 2025. NASA/Garon Clark NASA’s C-130 Hercules, fondly known as the Herc, went wheels up at 9:45 a.m., Friday, April 18, as it departed from its decade-long home at NASA’s Wallops Flight Facility in Virginia, for the final time. The aircraft is embarking on a new adventure to serve and protect in the state of California where it is now under the ownership of the California Department of Forestry and Fire Protection (CAL FIRE).
The transition of the C-130 to CAL FIRE is part of a long-running, NASA-wide aircraft enterprise-management activity to consolidate the aircraft fleet and achieve greater operational efficiencies while reducing the agency’s infrastructure footprint.
The C-130 Hercules takes off for the final time from NASA’s Wallops Flight Facility in Virginia.NASA/Garon Clark “Our C-130 and the team behind it has served with great distinction over the past decade,” said David L. Pierce, Wallops Flight Facility director. “While our time with this amazing airframe has come to a close, I’m happy to see it continue serving the nation in this new capacity with CAL FIRE.”
The research and cargo aircraft, built in 1986, was acquired by NASA in 2015. Over the past decade, the C-130 supported the agency’s airborne scientific research, provided logistics support and movement of agency cargo, and supported technology demonstration missions. The aircraft logged approximately 1,820 flight hours in support of missions across the world during its time with the agency.
Additional aircraft housed at NASA Wallops will be relocated to NASA’s Langley Research Center in Hampton, Virginia, in the coming months.
For more information on NASA’s Wallops Flight Facility, visit: www.nasa.gov/wallops.
By Olivia Littleton
NASA’s Wallops Flight Facility, Wallops Island, Va.
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Last Updated Apr 18, 2025 EditorOlivia F. LittletonLocationWallops Flight Facility Related Terms
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By NASA
3 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
The International Space Station is pictured from the SpaceX Dragon spacecraft by a Crew-8 member shortly after undocking from the Harmony module’s space-facing port as the orbital outpost was soaring 272 miles above the cloudy Patagonia region of South America.NASA NASA is seeking proposals for two new private astronaut missions to the International Space Station, targeted for 2026 and 2027, as the agency continues its commitment to expanding access to space. These private missions enable American commercial companies to further develop capabilities and support a continuous human presence in low Earth orbit.
“We are in an incredible time for human spaceflight, with more opportunities to access space and grow a thriving commercial economy in low Earth orbit,” said Dana Weigel, program manager for the International Space Station at NASA’s Johnson Space Center in Houston. “NASA remains committed to supporting this expansion by leveraging our decades of expertise to help industry gain the experience needed to train and manage crews, conduct research, and develop future destinations. Private astronaut missions are a key part of this effort, providing companies with hands-on opportunities to refine their capabilities and build partnerships that will shape the future of low Earth orbit.”
The new flight opportunities will be the fifth and sixth private astronaut missions to the orbiting laboratory coordinated by NASA. The first three missions were accomplished by Axiom Space in April 2022, May 2023, and January 2024, with a fourth scheduled for no earlier than May 2025.
Each of the new missions may be docked to the space station for up to 14 days. Specific dates depend on spacecraft traffic at the space station and in-orbit activity planning and constraints. Private astronaut missions must be brokered by a U.S. entity and use U.S. transportation spacecraft that meet NASA’s International Space Station visiting vehicle requirements, policies, and procedures. For additional details, refer to Focus Area 4A of NASA Research Announcement (NRA) NNJ13ZBG001N.
Proposals are due by 5 p.m. EDT on Friday, May 30, 2025.
For solicitation information, visit:
https://www.nasa.gov/johnson/jsc-procurement/pam
For more than two decades, people have lived and worked continuously aboard the International Space Station, advancing scientific knowledge and demonstrating new technologies, making research breakthroughs not possible on Earth. The station is a critical testbed for NASA to understand and overcome the challenges of long-duration spaceflight and to expand commercial opportunities in low Earth orbit. As commercial companies focus on providing human space transportation services and destinations as part of a robust low Earth orbit economy, NASA’s Artemis campaign is underway at the Moon, where the agency is preparing for future human exploration of Mars.
Learn more about the International Space Station at:
https://www.nasa.gov/station
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By NASA
Earth (ESD) Earth Explore Explore Earth Science Climate Change Air Quality Science in Action Multimedia Image Collections Videos Data For Researchers About Us 6 Min Read NASA Uses Advanced Radar to Track Groundwater in California
The Friant-Kern Canal supports water management in California’s San Joaquin Valley. A new airborne campaign is using NASA radar technology to understand how snowmelt replenishes groundwater in the area. Credits:
Bureau of Reclamation Where California’s towering Sierra Nevada surrender to the sprawling San Joaquin Valley, a high-stakes detective story is unfolding. The culprit isn’t a person but a process: the mysterious journey of snowmelt as it travels underground to replenish depleted groundwater reserves.
The investigator is a NASA jet equipped with radar technology so sensitive it can detect ground movements thinner than a nickel. The work could unlock solutions to one of the American West’s most pressing water challenges — preventing groundwater supplies from running dry.
“NASA’s technology has the potential to give us unprecedented precision in measuring where snowmelt is recharging groundwater,” said Erin Urquhart, program manager for NASA’s Earth Action Water Resources program at NASA Headquarters in Washington. “This information is vital for farmers, water managers, and policymakers trying to make the best possible decisions to protect water supplies for agriculture and communities.”
Tracking Water Beneath the Surface
In late February, a NASA aircraft equipped with Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR) conducted the first of six flights planned for this year, passing over a roughly 25-mile stretch of the Tulare Basin in the San Joaquin Valley, where foothills meet farmland. It’s a zone experts think holds a key to maintaining water supplies for one of America’s most productive agricultural regions.
Much of the San Joaquin Valley’s groundwater comes from the melting of Sierra Nevada snow. “For generations, we’ve been managing water in California without truly knowing where that meltwater seeps underground and replenishes groundwater,” said Stanford University geophysicist and professor Rosemary Knight, who is leading the research.
This image from the MODIS instrument on NASA’s Terra satellite, captured on March 8, 2025, shows the Tulare Basin area in Southern California, where foothills meet farmlands. The region is a crucial area for groundwater recharge efforts aimed at making the most of the state’s water resources. Credits: NASA Earth Observatory image by Michala Garrison, using MODIS data from NASA EOSDIS LANCE and GIBS/Worldview. The process is largely invisible — moisture filtering through rock and sediment, and vanishing beneath orchards and fields. But as the liquid moves downhill, it follows a pattern. Water flows into rivers and streams, some of it eventually seeping underground at the valley’s edge or as the waterways spread into the valley. As the water moves through the ground, it can create slight pressure that in turn pushes the surface upward. The movement is imperceptible to the human eye, but NASA’s advanced radar technology can detect it.
“Synthetic aperture radar doesn’t directly see water,” explained Yunling Lou, who leads the UAVSAR program at NASA’s Jet Propulsion Laboratory in Southern California. “We’re measuring changes in surface elevation — smaller than a centimeter — that tell us where the water is.”
These surface bulges create what Knight calls an “InSAR recharge signature.” By tracking how these surface bulges migrate from the mountains into the valley, the team hopes to pinpoint where groundwater replenishment occurs and, ultimately, quantify the amount of water naturally recharging the system.
Previous research using satellite-based InSAR (Interferometric Synthetic Aperture Radar) has shown that land in the San Joaquin Valley uplifts and subsides with the seasons, as the groundwater is replenished by Sierra snowmelt. But the satellite radar couldn’t uniquely identify the recharge paths. Knight’s team combined the satellite data with images of underground sediments, acquired using an airborne electromagnetic system, and was able to map the major hidden subsurface water pathways responsible for aquifer recharge.
NASA’s airborne UAVSAR system will provide even more detailed data, potentially allowing researchers to have a clearer view of where and how fast water is soaking back into the ground and recharging the depleted aquifers.
In 2025, NASA’s UAVSAR system on a Gulfstream-III jet (shown over a desert landscape) is conducting six planned advanced radar surveys to map how and where groundwater is recharging parts of California’s southern San Joaquin Valley. Credits: NASA Supporting Farmers and Communities
California’s Central Valley produces over a third of America’s vegetables and two-thirds of its fruits and nuts. The southern portion of this agricultural powerhouse is the San Joaquin Valley, where most farming operations rely heavily on groundwater, especially during drought years.
Water managers have occasionally been forced to impose restrictions on groundwater pumping as aquifer levels drop. Some farmers now drill increasingly deeper wells, driving up costs and depleting reserves.
“Knowing where recharge is happening is vital for smart water management,” said Aaron Fukuda, general manager of the Tulare Irrigation District, a water management agency in Tulare County that oversees irrigation and groundwater recharge projects.
“In dry years, when we get limited opportunities, we can direct flood releases to areas that recharge efficiently, avoiding places where water would just evaporate or take too long to soak in,” Fukuda said. “In wetter years, like 2023, it’s even more crucial — we need to move water into the ground as quickly as possible to prevent flooding and maximize the amount absorbed.”
NASA’s Expanding Role in Water Monitoring
NASA’s ongoing work to monitor and manage Earth’s water combines a range of cutting-edge technologies that complement one another, each contributing unique insights into the challenges of groundwater management.
The upcoming NISAR (NASA-ISRO Synthetic Aperture Radar) mission, a joint project between NASA and the Indian Space Research Organisation (ISRO) set to launch in coming months, will provide global-scale radar data to track land and ice surface changes — including signatures of groundwater movement — every 12 days.
The NISAR satellite (shown in this artist’s concept) has a large radar antenna designed to monitor Earth’s land and ice changes with unprecedented detail. Credits: NASA/JPL-Caltech In parallel, the GRACE satellites — operated by the German Aerospace Center, German Research Centre for Geosciences, and NASA — have transformed global groundwater monitoring by detecting tiny variations in Earth’s gravity, offering a broad view of monthly water storage changes across large regions.
The Gravity Recovery and Climate Experiment and Follow-On (GRACE and GRACE-FO) missions have helped expose major declines in aquifers, including in California’s Central Valley. But their coarser resolution calls for complementary tools that can, for example, pinpoint recharge hotspots with greater precision.
Together, these technologies form a powerful suite of tools that bridge the gap between regional-scale monitoring and localized water management. NASA’s Western Water Applications Office (WWAO) also plays a key role in ensuring that this wealth of data is accessible to water managers and others, offering platforms like the Visualization of In-situ and Remotely-Sensed Groundwater Observation (VIRGO) dashboard to facilitate informed decision-making.
“Airborne campaigns like this one in the San Joaquin test how our technology can deliver tangible benefits to American communities,” said Stephanie Granger, WWAO’s director at NASA’s Jet Propulsion Laboratory. “We partner with local water managers to evaluate tools that have the potential to strengthen water supplies across the Western United States.”
By Emily DeMarco
NASA Headquarters
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Last Updated Mar 20, 2025 Related Terms
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By NASA
After delivering ten NASA science and technology payloads to the near side of the Moon through NASA’s CLPS (Commercial Lunar Payload Services) initiative and Artemis campaign, Firefly Aerospace’s Blue Ghost Mission 1 lander captured this image of a sunset from the lunar surface. Credit: Firefly Aerospace After landing on the Moon with NASA science and technology demonstrations March 2, Firefly Aerospace’s Blue Ghost Mission 1 concluded its mission March 16. Analysis of data returned to Earth from the NASA instruments continues, benefitting future lunar missions.
As part of NASA’s CLPS (Commercial Lunar Payload Services) initiative and Artemis campaign, Firefly’s Blue Ghost lunar lander delivered 10 NASA science and technology instruments to the Mare Crisium basin on the near side of the Moon. During the mission, Blue Ghost captured several images and videos, including imaging a total solar eclipse and a sunset from the surface of the Moon. The mission lasted for about 14 days, or the equivalent of one lunar day, and multiple hours into the lunar night before coming to an end.
“Firefly’s Blue Ghost Mission 1 marks the longest surface duration commercial mission on the Moon to date, collecting extraordinary science data that will benefit humanity for decades to come,” said Nicky Fox, associate administrator, Science Mission Directorate at NASA Headquarters in Washington. “With NASA’s CLPS initiative, American companies are now at the forefront of an emerging lunar economy that lights the way for the agency’s exploration goals on the Moon and beyond.”
All 10 NASA payloads successfully activated, collected data, and performed operations on the Moon. Throughout the mission, Blue Ghost transmitted 119 gigabytes of data back to Earth, including 51 gigabytes of science and technology data. In addition, all payloads were afforded additional opportunities to conduct science and gather more data for analysis, including during the eclipse and lunar sunset.
“Operating on the Moon is complex; carrying 10 payloads, more than has ever flown on a CLPS delivery before, makes the mission that much more impressive,” said Joel Kearns, deputy associate administrator for exploration, Science Mission Directorate, NASA Headquarters. “Teams are eagerly analyzing their data, and we are extremely excited for the expected scientific findings that will be gained from this mission.”
Among other achievements, many of the NASA instruments performed first-of-their-kind science and technology demonstrations, including:
The Lunar Instrumentation for Subsurface Thermal Exploration with Rapidity is now the deepest robotic planetary subsurface thermal probe, drilling up to 3 feet and providing a first-of-its kind demonstration of robotic thermal measurements at varying depths. The Lunar GNSS Receiver Experiment acquired and tracked Global Navigation Satellite Systems (GNSS) signals, from satellite networks such as GPS and Galileo, for the first time enroute to and on the Moon’s surface. The LuGRE payload’s record-breaking success indicates that GNSS signals could complement other navigation methods and be used to support future Artemis missions. It also acts as a stepping stone to future navigation systems on Mars. The Radiation Tolerant Computer successfully operated in transit through Earth’s Van Allen belts, as well as on the lunar surface into the lunar night, verifying solutions to mitigate radiation effects on computers that could make future missions safer for equipment and more cost effective. The Electrodynamic Dust Shield successfully lifted and removed lunar soil, or regolith, from surfaces using electrodynamic forces, demonstrating a promising solution for dust mitigation on future lunar and interplanetary surface operations. The Lunar Magnetotelluric Sounder successfully deployed five sensors to study the Moon’s interior by measuring electric and magnetic fields. The instrument allows scientists to characterize the interior of the Moon to depths up to 700 miles, or more than half the distance to the Moon’s center. The Lunar Environment heliospheric X-ray Imager captured a series of X-ray images to study the interaction of the solar wind and Earth’s magnetic field, providing insights into how space weather and other cosmic forces surrounding Earth affect the planet. The Next Generation Lunar Retroreflector successfully reflected and returned laser light from two Lunar Laser Ranging Observatories, returning measurements allowing scientists to precisely measure the Moon’s shape and distance from Earth, expanding our understanding of the Moon’s inner structure. The Stereo Cameras for Lunar Plume-Surface Studies instrument captured about 9,000 images during the spacecraft’s lunar descent and touchdown on the Moon, providing insights into the effects engine plumes have on the surface. The payload also operated during the lunar sunset and into the lunar night. The Lunar PlanetVac was deployed on the lander’s surface access arm and successfully collected, transferred, and sorted lunar soil using pressurized nitrogen gas, demonstrating a low-cost, low-mass solution for future robotic sample collection. The Regolith Adherence Characterization instrument examined how lunar regolith sticks to a range of materials exposed to the Moon’s environment, which can help test, improve, and protect spacecraft, spacesuits, and habitats from abrasive lunar dust or regolith. The data captured will benefit humanity in many ways, providing insights into how space weather and other cosmic forces may impact Earth. Establishing an improved awareness of the lunar environment ahead of future crewed missions will help plan for long-duration surface operations under Artemis.
To date, five vendors have been awarded 11 lunar deliveries under CLPS and are sending more than 50 instruments to various locations on the Moon, including the lunar South Pole and far side.
Learn more about NASA’s CLPS initiative at:
https://www.nasa.gov/clps
-end-
Alise Fisher
Headquarters, Washington
202-617-4977
alise.m.fisher@nasa.gov
Natalia Riusech / Nilufar Ramji
Johnson Space Center, Houston
281-483-5111
nataila.s.riusech@nasa.gov / nilufar.ramji@nasa.gov
Antonia Jaramillo
Kennedy Space Center, Florida
321-501-8425
antonia.jaramillobotero@nasa.gov
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Last Updated Mar 18, 2025 LocationNASA Headquarters Related Terms
Commercial Lunar Payload Services (CLPS) Artemis Blue Ghost (lander) Johnson Space Center Kennedy Space Center NASA Headquarters View the full article
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By NASA
2 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
NASA astronaut and Expedition 72 Commander Suni Williams displays a set of BioNutrients production packs during an experiment aboard the International Space Station. The experiment uses engineered yeast to produce nutrients and vitamins to support future astronaut health.NASA NASA’s BioNutrients series of experiments is testing ways to use microorganisms to make nutrients that will be needed for human health during future long-duration deep space exploration missions. Some vital nutrients lack the shelf-life needed to span multi-year human missions, such as a mission to Mars, and may need to be produced in space to support astronaut health. To meet this need, the BioNutrients project uses a biomanufacturing approach similar to making familiar fermented foods, such as yogurt. But these foods also will include specific types and amounts of nutrients that crew will be able to consume in the future.
The first experiment in the series, BioNutrients-1, set out to assess the five-year stability and performance of a hand-held system – called a production pack – that uses an engineered microorganism, yeast, to manufacture fresh vitamins on-demand and in space. The BioNutrients-1 experiments began after multiple sets of production packs launched to the station in 2019. This collection included spare production packs as backups to be used in case an experiment needs to be re-run during the five-year study. The planned experiments concluded in January 2024 spare production packs still remaining aboard the orbiting lab and in the BioNutrients lab at NASA’s Ames Research Center in California’s Silicon Valley, where the ground team runs experiments in parallel to the crew operations.
Leaders at NASA’s International Space Station and Game Changing Development programs worked to coordinate the crew time needed to perform an additional BioNutrients-2 experiment using the spare packs. This extended the study’s timeline to almost six years in orbit, allowing valuable crew observations and data from the additional experiment run to be applied to a follow-on experiment, BioNutrients-3, which completed its analog astronaut experiment in April 2024, and is planned to launch to the station this year. Astronauts on the space station will freeze the sample and eventually it will be returned to Earth for analysis to see how much yeast grew and how much nutrient the experiment produced. This will help us understand how the shelf stability of the packets.
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Last Updated Mar 11, 2025 Related Terms
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