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By NASA
Explore This Section RPS Home About About RPS About the Program About Plutonium-238 Safety and Reliability For Mission Planners Contact RPS Systems Overview Power Systems Thermal Systems Dynamic Radioisotope Power Missions Overview Timeline News Resources STEM Power to Explore Contest FAQ 4 min read
NASA Reveals Semifinalists of Power to Explore Challenge
A word cloud showing “superpowers” of the 45 semifinalists. NASA/David Lam NASA selected 45 student essays as semifinalists of its 2024-2025 Power to Explore Challenge, a national competition for K-12 students featuring the enabling power of radioisotopes. Contestants were challenged to explore how NASA has powered some of its most famous science missions and to dream up how their personal “superpower” would energize their success on their own radioisotope-powered science mission to explore one of the nearly 300 moons of our solar system.
The competition asked students to learn about radioisotope power systems (RPS), a type of “nuclear battery” that NASA uses to explore the harshest, darkest, and dustiest parts of our solar system. RPS have enabled many spacecraft to explore a variety of these moons, some with active volcanoes, methane lakes, and intricate weather patterns similar to Earth. Many of these moons remain a mystery to us.
This year’s submissions to NASA’s Power to Explore Challenge were immensely enthralling, and we’re thrilled that the number of entries reached a record high.
Carl Sandifer II
Program Manager, NASA Radioisotope Power Systems Program
In 275 words or less, students wrote about a mission of their own that would use these space power systems to explore any moon in our solar system and described their own power to achieve their mission goals.
The Power to Explore Challenge offered students the opportunity to learn more about these reliable power systems, celebrate their own strengths, and interact with NASA’s diverse workforce. This year’s contest set a record, receiving 2,051 submitted entries from all 50 states, Guam, U.S. Virgin Islands, American Samoa, Northern Mariana Islands, Puerto Rico, and the Department of Defense Education Activity (DoDEA) Overseas.
“This year’s submissions to NASA’s Power to Explore Challenge were immensely enthralling, and we’re thrilled that the number of entries reached a record high,” said Carl Sandifer II, program manager of the Radioisotope Power Systems Program at NASA’s Glenn Research Center in Cleveland. “It was particularly interesting to see which moons the students selected for their individual essays, and the mysteries they hope to unravel. Their RPS-powered mission concepts always prove to be innovative, and it’s a joy to learn about their ‘superpowers’ that exemplify their path forward as the next generation of explorers.”
Entries were split into three categories: grades K-4, 5-8, and 9-12. Every student who submitted an entry received a digital certificate, and over 4,859 participants who signed up received an invitation to the Power Up with NASA virtual event. Students learned about what powers the NASA workforce utilizes to dream big and work together to explore. Speakers included Carl Sandifer II, Dr. Wanda Peters, NASA’s deputy associate administrator for programs in the Science Mission Directorate and Dr. Zibi Turtle, principal investigator for NASA’s Dragonfly mission from the John Hopkins Applied Physics Laboratory.
Fifteen national semifinalists in each grade category (45 semifinalists total) have been selected. These participants also will receive a NASA RPS prize pack. Finalists for this challenge will be announced on April 23.
Grades K-4
Vihaan Akhoury, Roseland, NJ Ada Brolan, Somerville, MA Ashwin Cohen, Washington D.C Unnathi Chandra Devavarapu, San Marcos, CA Levi Fisher, Portland, OR Tamanna Ghosh, Orlando, FL Ava Goodison, Arnold, MD Anika Lal, Pflugerville, TX Diya Loganathan, Secaucus, NJ Mini M, Ann Arbor, MI Mark Porter, Temple Hills, MD Rohith Thiruppathy, Canton, MI Zachary Tolchin, Guilford CT Kavin Vairavan, West Windsor Township, NJ Terry Xu, Arcadia, CA Grades 5-8
Chowdhury Wareesha Ali, Solon OH Caydin Brandes, Los Angeles, CA Caleb Braswell, Crestview, FL Lilah Coyan, Spokane, WA Ashwin Dhondi Kubeer, Phoenix, AZ Jonathan Gigi, Cypress, TX Gagan Girish, Portland, OR Maggie Hou, Snohomish, WA Sanjay Koripelli, Louisville, KY Isaiah Muniz, South Orange, NJ Sarabhesh Saravanakumar, Bothell, WA Eliya Schubert, Katonah, NY Gabriel Traska, Fort Woth, TX Jaxon Verbeck, Riggins, ID Krish Vinodhkumar, Monrovia, MD Grades 9-12
Samaria Berry, Kinder, LA David Cai, Saipan, MP Reggie Castro, Saipan, MP Ryan Danyow, Rutland City, VT Faiz Karim, Jericho, NY Sakethram Kuncha, Chantilly, VA Katerina Morin, Miami, FL Emilio Olivares, Edmond, OK Kairat Otorov, Trumbull, CT Dev Rai, Herndon, VA Shaurya Saxena, Irving, TX Saanvi Shah, Bothell, WA Niyant Sithamraju, San Ramon, CA Anna Swenson, Henderson, NV Alejandro Valdez, Orlando, FL About the Challenge
The Power to Explore Student Challenge is funded by the NASA Science Mission Directorate’s Radioisotope Power Systems Program Office and managed and administered by Future Engineers under the direction of the NASA Tournament Lab, a part of the Prizes, Challenges, and Crowdsourcing Program in NASA’s Space Technology Mission Directorate.
Kristin Jansen
NASA’s Glenn Research Center
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By NASA
NASA astronaut and Pilot for NASA’s SpaceX Crew-10 mission Nichole Ayers is pictured training inside a mockup of a Dragon cockpit at the company’s facilities in Hawthorne, California. Credit: SpaceX Students from Richmond Hill, New York,will have the chance to connect with NASA astronauts Anne McClain and Nichole Ayers as they answer prerecorded science, technology, engineering, and mathematics-related questions from aboard the International Space Station.
Watch the 20-minute space-to-Earth call at 12 p.m. EDT on Wednesday, March 26, on NASA+ and learn how to watch NASA content on various platforms, including social media.
The event, open to students and their families, will be hosted by Richmond Hill High School, a New York City public high school in Queens South, District 27. The school’s goal is to inspire their students to pursue STEM careers.
Media interested in covering the event must contact Lilly Donaldson at Lily@arttechnically.org by 5 p.m., Monday, March 24.
For more than 24 years, astronauts have continuously lived and worked aboard the space station, testing technologies, performing science, and developing skills needed to explore farther from Earth. Astronauts aboard the orbiting laboratory communicate with NASA’s Mission Control Center in Houston 24 hours a day through SCaN’s (Space Communications and Navigation) Near Space Network.
Important research and technology investigations taking place aboard the space station benefit people on Earth and lays the groundwork for other agency missions. As part of NASA’s Artemis campaign, the agency will send astronauts to the Moon to prepare for future human exploration of Mars; inspiring Artemis Generation explorers and ensuring the United States continues to lead in space exploration and discovery.
See videos and lesson plans highlighting space station research at:
https://www.nasa.gov/stemonstation
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Abbey Donaldson
Headquarters, Washington
202-358-1600
Abbey.a.donaldson@nasa.gov
Sandra Jones
Johnson Space Center, Houston
281-483-5111
sandra.p.jones@nasa.gov
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Last Updated Mar 21, 2025 LocationNASA Headquarters Related Terms
Learning Resources In-flight Education Downlinks Outside the Classroom View the full article
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By NASA
This year’s RASC-AL competition invited undergraduate and graduate students from across the nation to develop new, innovative concepts to improve our ability to operate on the Moon, Mars, and beyond.ASANASA Fourteen university teams have been selected as finalists for NASA’s 2025 Revolutionary Aerospace Systems – Academic Linkage (RASC-AL) Competition. This year’s competition invited undergraduate and graduate students from across the nation to develop new, innovative concepts to improve our ability to operate on the Moon, Mars, and beyond. Finalists will present their proposed concepts to a panel of NASA and aerospace industry leaders.
The 2025 Finalists are:
Sustained Lunar Evolution – An Inspirational Moment: Massachusetts Institute of Technology, “M.I.S.T.R.E.S.S. – Moon Infrastructure for Sustainable Technologies, Resource Extraction, and Self-Sufficiency” Tulane University, “Scalable Constructs for Advanced Lunar Activities and Research (SCALAR)” Virginia Polytechnic Institute and State University, “Project Aeneas” Virginia Polytechnic Institute and State University, “Project Khonsu” Advanced Science Missions and Technology Demonstrators for Human-Mars Precursor Campaign: Auburn University, “Dynamic Ecosystems for Mars ECLSS Testing, Evaluation, and Reliability (DEMETER)” University of Illinois, Urbana-Champaign, “MATER: Mars Architecture for Technology Evaluation and Research” Virginia Polytechnic Institute and State University, “Project Vehicles for Engineering Surface Terrain Architectures (VESTA)” Small Lunar Servicing and Maintenance Robot: Arizona State University, “DIANA – Diagnostic and Intelligent Autonomously Navigated Assistant” South Dakota State University, “Next-gen Operations and Versatile Assistant (NOVA)” South Dakota State University, “MANTIS: Maintenance and Navigation for Technical Infrastructure Support” Texas A&M University, “R.A.M.S.E.E.: Robotic Autonomous Maintenance System for Extraterrestrial Environments” University of Maryland, “Servicing Crane Outfitted Rover for Payloads, Inspection, Operations, N’stuff (SCORPION)” University of Puerto Rico, Mayagüez, “Multi-functional Operational Rover for Payload Handling and Navigation (MORPHN)” Virginia Polytechnic Institute & State University, “Adaptive Device for Assistance and Maintenance (ADAM)” The RASC-AL Competition is designed to engage university students and academic institutions in innovation within the field of aerospace engineering. By providing a platform for students to develop and present their ideas, NASA aims to cultivate foundational research for new concepts and technologies for the future of space exploration. This year’s RASC-AL projects include scalable lunar infrastructure and services, a lunar robot that can work autonomously or be controlled remotely, and a concept for a science or technology demonstration mission using human-scale launch, transportation, entry, and landing capabilities at Mars. All of these functions are critical to future NASA missions.
“This year’s RASC-AL projects are not just academic exercises; they will contribute real solutions to some of the most pressing challenges we currently face. The competition continues to highlight the importance of innovation and interdisciplinary collaboration in aerospace,” said Daniel Mazanek, RASC-AL program sponsor and senior space systems engineer from NASA’s Langley Research Center in Hampton, VA.
These finalist teams will move forward to the next phase of the competition, where they will prepare and submit a detailed technical paper outlining their designs, methodologies, and anticipated impacts. Each team will present their concepts at the 2025 RASC-AL Competition Forum in June 2025 showcasing their work to a judging panel of NASA and industry experts for review and discussion.
“The ingenuity and out-of-the-box designs showcased by these students is inspiring,” added Dr. Christopher Jones, RASC-AL program sponsor and chief technologist for the Systems Analysis and Concepts Directorate at NASA’S Langley “We are excited to see how their ideas can contribute to NASA’s ongoing missions and future exploration goals. This is just the beginning of their journey, and we are proud to be part of it.”
To learn more about NASA’s RASC-AL Competition, visit NASA’s RASC-AL Competition Website. RASC-AL is sponsored by the Strategy and Architecture Office within the Exploration Systems Development Mission Directorate at NASA Headquarters, and by the Space Mission Analysis Branch within the Systems Analysis and Concepts Directorate at NASA’s Langley Research Center. It is administered by the National Institute of Aerospace.
Genevieve Ebarle / Victoria O’Leary
National Institute of Aerospace
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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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A group of attendees of the joint NASA-USGS workshop, Planetary Subsurface Exploration for Science and Resources, gathers for a photo at NASA’s Ames Research Center on Feb. 11, 2025. Workshop participants discussed observations, technologies, and operations needed to support new economies for terrestrial and off-world resources, including critical minerals.NASA/Brandon Torres Navarrete NASA and the U.S. Geological Survey (USGS) welcomed a community of government, industry, and international partners to explore current technology needs around natural resources – both on Earth and “off world.” During a workshop held in February at NASA’s Ames Research Center in California’s Silicon Valley, participants discussed technologies that will improve the ability to detect, assess, and develop resources, such as critical minerals and water ice to be found on our Moon, other planets and their moons, and asteroids.
More than 300 attendees, taking part in person and virtually, worked to define the elements needed to find and map resources beyond Earth to support the growing space economy. These include sensors to image the subsurface of planetary bodies, new platforms for cost-effective operations, and technologies that enable new concepts of operation for these systems.
Scientific studies and measurements of off-world sites will be key to detecting and characterizing resources of interest, creating an important synergy with technology goals and helping to answer fundamental science questions as well.
The workshop was the third in a series called Planetary Subsurface Exploration for Science and Resources. By leveraging the expertise gained from decades of resource exploration on this planet and that of the space technology and space mission communities, NASA and USGS aim to spark collaboration across industry, government, and academia to develop new concepts and technologies.
Participants in the NASA-USGS off-world resources workshop take part in a panel review of technology opportunities, Feb. 13, 2025, at NASA’s Ames Research Center. The panelists were Dave Alfano, chief of the Intelligent Systems Division at NASA’s Ames Research Center in California’s Silicon Valley (left); Rob Mueller, a senior technologist and principal investigator in the Exploration Research and Technology Programs Directorate at NASA’s Kennedy Space Center in Florida; Christine Stewart, CEO at Austmine Limited in Australia; Gerald Sanders, in-situ resource utilization system capability lead for NASA’s Space Technology Mission Directorate based at NASA’s Johnson Space Center in Houston; and Jonathon Ralston, Integrated Mining Research Team lead at Australia’s Commonwealth Scientific and Industrial Research Organisation. NASA/Brandon Torres Navarrete
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