Jump to content
Join the Alien Search, login or register FREE on Aliens and Space Forum
Members Can Post Anonymously On This Site

NASA’s Brad Doorn Brings Farm Belt Wisdom to Space-Age Agriculture

NASA

By NASA
in NASA

 Share

Recommended Posts

  • Publishers
NASA Mentor

NASA

Posted
  • Publishers
Posted
14 Min Read

NASA’s Brad Doorn Brings Farm Belt Wisdom to Space-Age Agriculture

Map of U.S. Midwest showing corn cultivation in yellow dots against gray background, with several Great Lakes visible.
This image shows corn cultivation patterns across the U.S. Midwest in 2020, with lands planted in corn marked in yellow.
Credits:
NASA Earth Observatory/ Lauren Dauphin

Bradley Doorn grew up in his family’s trucking business, which hauled milk and animal feed across the sprawling plains of South Dakota. Home was Mitchell, a small town famous for its Corn Palace, where murals crafted from corn kernels and husks have adorned its facade since 1892—a tribute to the abundance of the surrounding farmland.

Trucking was often grueling work for the family, the day breaking early and ending in headlights. Like farming, driving a truck wasn’t just a job; it was the engine of daily life, thrumming through nearly every conversation and decision.

Brad loved the outdoors, and by the time he started college in the early 1980s, studying geological engineering felt like a natural fit. “I wanted to be out in the field somewhere, working under the big skies of the West,” Brad recalled. But in his sophomore year at the South Dakota School of Mines and Technology, the tuition money dried up.

Man in blue jeans and a short sleeve button down shirt stands in the grass next to a residential street. He stands behind an orange truck with a silver tank on the back used to haul milk in the 1960s and 70s parked mostly in the grass at the side of the road. There are open doors on the back of the truck.
Dean Doorn, Brad Doorn’s father, stands beside a milk truck used in the family’s business of hauling milk across South Dakota in the 1960s and ’70s.
Credit: B. Doorn

Doorn found himself at a crossroads familiar to many in rural America: return to the certainty of a family trade or chart a new route. “That’s when the Army stepped in,” he said. The ROTC program offered a way to continue with school and a path into the world of remote sensing—a field that would come to define his career.

Brad’s choice to join the Army would eventually place him at the forefront of a mapping revolution, equipping him to see and analyze Earth in ways never possible before the advent of satellites. But more than the technical skills, the military showed him the allure of a life anchored to mission and team.

Even as his career took him far from Mitchell, Doorn would remain connected to his rural America roots. Today, he leads NASA’s agriculture programs within the agency’s Earth Science Division. “My family wasn’t made up of farmers, but farming was a part of everything growing up,” said Brad. “Even now, working with NASA, that connection to the land—the sense of how weather, crops, and people are tied together—it’s still in everything I do.”

Amid the dazzle of NASA’s feats exploring the solar system and universe, it’s easy to miss the agency’s quiet work in fields of soy and wheat. But for more than 60 years, the agency has harnessed the power of its satellites to deliver crucial data on temperature, precipitation, crop yields, and more to farmers, policymakers, and food security experts worldwide.

A false-color satellite image showing a patchwork of agricultural fields surrounding a dark blue lake, with green vegetation and grid-like patterns visible across the landscape.
The Landsat 9 satellite captured this false-color image of Louisiana rice fields in February 2023. Dark blue shows flooded areas, while green indicates vegetation. Grid-like levees separate fields pre-planting. Louisiana is the third largest producer of rice in the U.S.
Credit: NASA Earth Observatory/ Lauren Dauphin

From orbit, satellites beam down streams of data—numbers and pixels that, when paired with farmers’ knowledge of the land, can guide growers as they adjust irrigation levels or plan for the next planting. But the satellites don’t just yield data; they tell stories that call for action, enabling nations to brace for droughts, floods, and the prospect of empty grain silos.

“Under Brad’s guidance, NASA’s agriculture program has become a global leader for satellite-driven solutions, tackling food security and sustainability head-on,” said Lawrence Friedl, the senior engagement officer for NASA Earth Science. Reflecting on years of collaboration, he added: “I am so impressed and grateful for what he and his teams have accomplished.”

Boots Meet Satellites in the First Gulf War

Long before Brad began guiding NASA’s agricultural initiatives, he was already navigating tricky terrain, both literal and figurative, with satellite imagery. His career in remote sensing didn’t start with crops, but with the deserts of Iraq and Kuwait.

As part of the Army’s 18th Airborne Corps, Brad led a company at Fort Bragg (now Fort Liberty) in North Carolina that had just returned from operations in the First Gulf War, in the early 1990s. “I loved being part of a unit, part of something bigger than just me,” Brad recalled. “It felt good to have that purpose and mission.”

Far from the combat zone, Doorn’s company became cartographers of the invisible. Their task: merge data from the Landsat satellite with the gritty reality of desert warfare depicted on military maps.

White man sitting at a desk in U.S. Army camouflage uniform. The desk has a pen and various stacks of paperwork and there are shelves behind him with various books and a stereo.
Brad Doorn, then a U.S. Army officer, sits at his desk during his early career in remote sensing. His military experience would later shape his work at NASA, applying satellite technology to real-world challenges.
Credit: B. Doorn

Landsat, a civilian satellite built by NASA and operated by the U.S. Geological Survey, could see what the soldiers on the ground could not. Its thermal infrared sensor—a camera with a penchant for temperature and moisture—read the desert floor like an ancient script, picking out the cold, soggy signature of mud lurking beneath the desert’s deceptive crust. Each pixel of satellite data became a brushstroke in a new kind of map, keeping tanks out of the mire and the missions on track.

“It was so neat to see the remote sensing techniques I’d learned about in school actually making a difference,” Doorn said.

With this knowledge, he helped guide his unit’s shift from analog maps—paper grids and grease pencils—to the emerging world of digital mapping, a leap that sharpened the military’s ability to read the landscape and steer clear of trouble.

From Desert Muck to Farm Fields

Brad’s military experience gave him an early look at how satellite data could address tangible, on-the-ground challenges. In the Army, he saw how integrating satellite data into military maps could offer soldiers critical information. That experience set the foundation for his later work at NASA, where he would help develop technology with lasting, practical impacts.

Consider OpenET, a NASA-funded initiative that uses Landsat data to give farmers insights into water use and irrigation needs at field scale. The ET in OpenET stands not for the little alien who phoned home, but for evapotranspiration. It’s a combination of water evaporating from the ground and water released by plants into the air.

The program relies on the same thermal technology Doorn used during the Gulf War. Just as cooler, wetter areas in the desert hint at muddy spots, cooler patches in farm fields show where there’s more moisture or plants are releasing more water. These data are key to managing water resources wisely and keeping crops healthy.

“OpenET has transformed our understanding of water demand,” explained Doorn.

This map shows evapotranspiration levels across Central California including the Bay Area. Darker blue can be seen in the Central Valley.
To better manage water, state officials and farmers in California are using satellite data through OpenET to track evapotranspiration. Here, the colors represent total evapotranspiration for 2023 as the equivalent depth of water in millimeters. Dark blue regions have higher evapotranspiration rates, such as in the Central Valley.
Credit: NASA Earth Observatory using openetdata.org

In the late 2000s, when a new generation of Landsat satellites was being planned, the thermal infrared imagers were initially left off the drawing board. “Landsat 8’s design caused a lot of consternation in some Western states that were beginning to use the instrument for measuring and monitoring water use,” said Tony Willardson, the executive director of the Western States Water Council, a government entity that advises western governors on water policy.

Brad played a key role in conveying to NASA the critical need for this technology, both for agriculture and water management, Willardson said. The thermal imager was eventually reinstated and has since “helped to close a gap in western water management.”

“A lot of the technologies that we are using more and more were developed by NASA,” said Willardson. “We need NASA to be doing even more in Earth science.”

Sowing Global Food Stability from Space

Brad ended up serving in the Army for nearly a decade. “You hit that 10-year mark in the military, and you sort of have to decide if you’re staying in for 20 or if you’re getting out,” said Brad. “My wife, Kristen, was able to manage her career as a registered dietician through the first four moves in six years, but eventually it was too much. So, I told her: ‘Your choice. You decide where we go next.’”

She chose southern Pennsylvania to be closer to her family. Brad was 32 years old, and the couple had two small children at the time—one of whom had had open-heart surgery at 6 weeks old to fix a heart defect. They would go on to have another child.

In the late 1990s, within a few years of leaving the military, Doorn found himself someplace he had never imagined: sitting behind a desk at the U.S. Department of Agriculture. For a boy who had grown up driving trucks across the plains of South Dakota—who had vowed never to work in an office, much less live east of the Mississippi—this was an unexpected detour. But he had long since learned that the best paths are often the ones you don’t see coming.

At USDA, he moved forward not with a grand plan, but with an instinctive trust in where curiosity and challenge might lead. He rose through the ranks, from a programmer to directing the agency’s international food production analysis program. He was increasingly driven by a conviction that satellite data, if used the right way, could transform how we see the land and the way we feed the world.

While at USDA, and later at NASA, which he joined in 2009, Brad was instrumental in developing and overseeing the Global Agricultural Monitoring (GLAM) system. This real-time interactive satellite platform delivers massive amounts of ready-to-use satellite data directly to USDA crop analysts, eliminating the burden of data processing and enabling them to focus on rapid crop analysis across the globe. It was a pioneering tool, said Inbal Becker-Reshef, a research professor at University of Maryland’s Department of Geographical Sciences, who played a central role in developing the GLAM system.

Brad Doorn gestures while presenting satellite imagery on a large digital display wall in a room with high-bar seating.
At a 2022 Kansas gathering, Brad Doorn presents to farmers about NASA’s Earth Science Division and its activities supporting agriculture.
Credit: A. Whitcraft

GLAM set the stage for GEOGLAM, a separate, international initiative launched in 2011 by agriculture ministers from the G20—a group of the world’s major economies—partly as a response to global food price volatility. GEOGLAM, which stands for Group on Earth Observations Global Agricultural Monitoring, uses satellite data to monitor global crop conditions, from drought stress to excessive rain, around the world.

Joseph Glauber, a former USDA chief economist, noted that there was initial uncertainty within USDA about the initiative’s longevity, but he credited Brad’s background with rallying support. Today, GEOGLAM’s monthly crop assessments, produced by over 40 organizations including USDA and NASA, serve as a global consensus on crop conditions, helping governments and humanitarian organizations anticipate food shortages.

“Even today, the G20 points to GEOGLAM and its sister initiative, the Agricultural Market Information System—which tracks how crop conditions affect markets—as major successes,” Glauber said.

Harvesting Data Amid Conflict

Doorn’s work crosses continents. When war broke out between Russia and Ukraine in 2022, it rattled global food markets. The Ukrainian government turned to NASA Harvest—a global food security and agriculture consortium led by the University of Maryland and funded by NASA—for help. As manager of NASA’s agriculture program, Brad was a driving force behind the launch of NASA Harvest in 2017, envisioning it as a program that would harness satellite data to provide timely, actionable insights for global agriculture.

From orbit, satellites could observe the sown and the harvested wheat, sunflowers, and barley, offering some of the only reliable estimates for fields in the war zone. Satellite imagery revealed that, despite the conflict, more cropland had been planted and harvested in Ukraine than anyone had expected, a finding that helped stabilize volatile global food prices.

“Brad and the team recognized that providing that type of rapid agricultural assessment for policy support is what NASA Harvest exists for,” said Becker-Reshef, who is the director of the consortium.

NASA Harvest’s reach stretches well beyond Europe. In sub-Saharan Africa, the consortium collaborates with local and international partners, tracking the health of crops and the creeping spread of drought. This information helps equip governments, aid organizations, and farmers to act before disaster strikes, making each data point a crucial defense against hunger.

NASA Harvest has since been joined by NASA Acres, founded in 2023 to provide satellite data and tools that help farmers make well-informed decisions for healthier crops and soil in the United States. One project, for example, involves working with farmers in Illinois to manage nitrogen use more effectively, leveraging satellite data to enhance crop yields while reducing environmental impact.

Map of U.S. Midwest showing corn cultivation in yellow dots against gray background, with several Great Lakes visible.
This image shows corn cultivation patterns across the U.S. Midwest in 2020, with lands planted in corn marked in yellow. The map was built from the Cropland Data Layer product provided by the National Agricultural Statistics Service, which includes data from the USGS National Land Cover Database and from satellites such as Landsat 8.
Credit: NASA Earth Observatory/ Lauren Dauphin

Friedl noted that Doorn understands the missions of both NASA and the USDA, and with his agricultural roots, he knows the needs of farmers and agricultural businesses firsthand. “Often in meetings, Brad would remind us that the margins for a farmer are in the pennies,” Friedl said. “They wouldn’t be able to afford remote sensing,” so making sure NASA’s satellite information was free and accessible was that much more important.

“It’s hard to imagine that NASA would have the agriculture program it does without somebody like Brad continuing to advocate and push for this to exist,” said Alyssa Whitcraft, the director of NASA Acres. “He knows how critical it is for satellite data to be accessible and useful to those on the ground. He makes sure we never lose sight of that.”

An Emissary Between Worlds

Colleagues say Doorn’s strength lies in his ability to bridge worlds, whether it’s making connections between agencies like NASA and USDA, or connecting such agencies to state water councils or farming communities. His fluency in translating complex science into simple terms makes him equally at ease in whichever world he finds himself.

“There’s NASA language and there’s farm language,” says Lance Lillibridge, who farms about 1,400 acres of corn and soybeans in Benton County, Iowa, and has helped lead the Iowa Corn Growers Association. “Sometimes you need an interpreter, and Brad’s that guy.” He recalled a meeting where some farmers were skeptical, wary of NASA’s “big brother” eyes in the sky, “but Brad had a way of putting people at ease, keeping everyone focused on the shared goal of better data for better decisions.”

s4a-ia-0401.jpg?w=1058
Brad Doorn speaks during NASA’s “Space for Ag” roadshow in Iowa, July 2023, highlighting NASA’s role in supporting sustainable farming practices.
Credit: N. Pepper

“One of my favorite memories of Brad,” said Forrest Melton, the OpenET project scientist at NASA’s Ames Research Center, “is an afternoon spent visiting with farmers in western Nebraska, drinking iced tea and talking with them about the challenges facing their family farm.”

Colleagues describe Brad as a nearly unflappable guide, one who knows the agricultural landscape so well that he makes the impossible seem manageable. They say his calm, approachable style, paired with a ready smile, puts people at ease whether in Washington conference rooms or Midwestern barns. And he listens closely to understand where there may be opportunities to help.

“Few people in the water and agriculture communities, from the small-scale farmer to the federal government appointee, aren’t familiar with some aspect of the work Brad has enabled over the decades,” said Sarah Brennan, a former deputy program manager for NASA’s water resources programs. “He has supported the development of some of the greatest advancements in using remote sensing in these communities.”

It’s About the People and the Team

Doorn’s leadership is less about issuing directives, colleagues say, and more about cultivating growth—in crops, in data systems, and in people. Like a farmer tending to his fields, he nurtures the potential in every project and person he encounters. “Almost everyone who has worked for Brad can point back to the opportunities he provided them that launched their successful careers,” said Brennan.

Over the years, he’s added layers to this work of creating paths for others to succeed: as president of the American Society of Photogrammetry and Remote Sensing, as an adjunct professor at Penn State, and as a youth basketball league director.

“What I’ve learned, probably in the military and I’ve carried it forward, is that it’s the people that matter,” Brad said. “I had great mentors who believed it’s just as important to help others grow as it is to meet the day’s demands. Those roles shift your focus toward the people around you, and often, the more you give of your time, the more you end up getting back.”

Five children—young Brad Doorn and four siblings—stand outside a house. Two girls wear matching floral dresses, and the three boys are in various formal attire.
Young Brad Doorn (front center) stands with his siblings, capturing a family moment in 1960s South Dakota. His youngest brother isn’t pictured.
Credit: B. Doorn

It has been a long journey from hauling milk and animal feed across the South Dakota plains to surveying them now as a scientist. The tools of his career have changed—from truck routes to satellite orbits, from paper maps to digital data—but his mission remains the same: helping farmers feed the world.

“Growing up in South Dakota, I saw firsthand the challenges farmers face. Today, I’m proud to help provide the tools and data that can make a real difference in their lives,” Doorn added. “Whether it’s a farmer, an economist, or a military analyst, if you give them the right tools, they’ll take them to places you never even thought about. That’s what excites me—seeing where they go.”

By Emily DeMarco

NASA’s Earth Science Division, Headquarters

Share

Details

Last Updated
Nov 20, 2024

Related Terms

Keep Exploring

Discover More Topics From NASA

Earth

Your home. Our Mission. And the one planet that NASA studies more than any other.

GSFC_20171208_Archive_e001016~large.jpg?


Explore Earth Science

NHQ202212160009~large.jpg?w=1920&h=1920&


Earth Science in Action

NASA’s unique vantage point helps us inform solutions to enhance decision-making, improve livelihoods, and protect our planet.

banner-home-2500x500-v1.jpg?w=1536


Climate Change

NASA is a global leader in studying Earth’s changing climate.

icescapepondsample-lrg-jpg.webp?w=1536

View the full article

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
 Share
Go to topic listing

  • Similar Topics

    • NASA
      Robots, Rovers, and Regolith: NASA Brings Exploration to FIRST Robotics 2025 
      By NASA
      What does the future of space exploration look like? At the 2025 FIRST Robotics World Championship in Houston, NASA gave student robotics teams and industry leaders a first-hand look—complete with lunar rovers, robotic arms, and real conversations about shaping the next era of discovery. 
      Students and mentors experience NASA exhibits at the 2025 FIRST Robotics World Championship at the George R. Brown Convention Center in Houston from April 16-18. NASA/Sumer Loggins NASA engaged directly with the Artemis Generation, connecting with more than 55,000 students and 75,000 parents and mentors. Through interactive exhibits and discussions, students explored the agency’s robotic technologies, learned about STEM career paths and internships, and gained insight into NASA’s bold vision for the future. Many expressed interest in internships—and dreams of one day contributing to NASA’s missions to explore the unknown for the benefit of all humanity. 
      Multiple NASA centers participated in the event, including Johnson Space Center in Houston; Jet Propulsion Laboratory in Southern California; Kennedy Space Center in Florida; Langley Research Center in Virginia; Ames Research Center in California; Michoud Assembly Facility in New Orleans; Armstrong Flight Research Center in Edwards, California; Glenn Research Center in Cleveland; Goddard Space Flight Center in Greenbelt, Maryland; and the Katherine Johnson Independent Verification and Validation Facility in West Virginia. Each brought unique technologies and expertise to the exhibit floor. 
      FIRST Robotics attendees explore NASA’s exhibit and learn about the agency’s mission during the event.NASA/Robert Markowitz Displays highlighted key innovations such as: 
      Automated Reconfigurable Mission Adaptive Digital Assembly Systems: A modular system of small robots and smart algorithms that can autonomously assemble large-scale structures in space.  Cooperative Autonomous Distributed Robotic Exploration: A team of small lunar rovers designed to operate independently, navigating and making decisions together without human input.  Lightweight Surface Manipulation System AutoNomy Capabilities Development for Surface Operations and Construction: A robotic arm system built for lunar construction tasks, developed through NASA’s Early Career Initiative.  Space Exploration Vehicle: A pressurized rover prototype built for human exploration of planetary surfaces, offering attendees a look at how future astronauts may one day travel across the Moon or Mars.  Mars Perseverance Rover: An exhibit detailing the rover’s mission to search for ancient microbial life and collect samples for future return to Earth.  In-Situ Resource Utilization Pilot Excavator: A lunar bulldozer-dump truck hybrid designed to mine and transport regolith, supporting long-term exploration through the Artemis campaign.  Visitors view NASA’s Space Exploration Vehicle on display.NASA/Robert Markowitz “These demonstrations help students see themselves in NASA’s mission and the next frontier of lunar exploration,” said Johnson Public Affairs Specialist Andrew Knotts. “They can picture their future as part of the team shaping how we live and work in space.” 
      Since the FIRST Championship relocated to Houston in 2017, NASA has mentored more than 250 robotics teams annually, supporting elementary through high school students. The agency continued that tradition for this year’s event, and celebrated the fusion of science, engineering, and creativity that defines both robotics and space exploration. 
      NASA’s booth draws crowds at FIRST Robotics 2025 with hands-on exhibits. NASA/Robert Markowitz Local students also had the chance to learn about the Texas High School Aerospace Scholars program, which offers Texas high school juniors hands-on experience designing space missions and solving engineering challenges—an early gateway into NASA’s world of exploration. 
      As the competition came to a close, students and mentors were already looking ahead to the next season—energized by new ideas, strengthened friendships, and dreams of future missions. 
      NASA volunteers at the FIRST Robotics World Championship on April 17, 2025. NASA/Robert Markowitz “It was a true privilege to represent NASA to so many inspiring students, educators, and mentors,” said Jeanette Snyder, aerospace systems engineer for Gateway. “Not too long ago, I was a robotics student myself, and I still use skills I developed through FIRST Robotics in my work as a NASA engineer. Seeing so much excitement around engineering and technology makes me optimistic for the future of space exploration. I can’t wait to see these students become the next generation of NASA engineers and world changers.” 
      With the enthusiastic support of volunteers, mentors, sponsors, and industry leaders, and NASA’s continued commitment to STEM outreach, the future of exploration is in bold, capable hands. 
      See the full event come to life in the panorama videos below.
      To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video
      To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video
      View the full article
    • European Space Agency
      Webb brings dying star's energetic display into full focus
      By European Space Agency
      Image: Planetary Nebula NGC 1514 (MIRI image) View the full article
    • NASA
      Finalists Selected in NASA Aeronautics Agriculture-Themed Competition 
      By NASA
      3 min read
      Preparations for Next Moonwalk Simulations Underway (and Underwater)
      Eight finalist teams participating in the 2025 NASA Gateways to Blue Skies Competition have been selected to present to a panel of judges their design concepts for aviation solutions that can help the agriculture industry. 
      Sponsored by NASA’s Aeronautics Research Mission Directorate, this year’s competition asked teams of university students to research new or improved aviation solutions to support agriculture. The goal of the competition, titled AgAir: Aviation Solutions for Agriculture, is to enhance production, efficiency, sustainability, and resilience to extreme weather. Participants submitted proposals and accompanying videos summarizing their AgAir concepts and describing how they could demonstrate benefits by 2035 or sooner.  
      “We continue to see a growing interest in our competition with a tremendous response to this year’s agricultural theme – so many great ideas fueled by the passion of our future workforce,” said Steven Holz, NASA Aeronautics University Innovation assistant project manager and co-chair of the Gateways to Blue Skies judging panel. “We are excited to see how each finalist team fleshes out their original concept in their final papers, infographics, and presentations.” 
      The eight finalist teams will each receive stipends to facilitate their participation in the culminating Gateways to Blue Skies Forum, which will be held near NASA’s Armstrong Flight Research Center in Palmdale, California, May 20-21 and livestreamed globally. Finalists will present to a panel of NASA and industry experts, and the winning team will have the opportunity to intern at one of NASA’s aeronautics centers during the coming academic year. 
      We continue to see a growing interest in our competition with a tremendous response to this year’s agricultural theme – so many great ideas fueled by the passion of our future workforce.
      steven holz
      NASA Aeronautics University Innovation Assistant Project Manager
      The finalists’ projects and their universities are: 
      Proactive Resource Efficiency via Coordinated Imaging and Sprayer Execution
      Auburn University, in Alabama
      Precision Land Analysis and Aerial Nitrogen Treatment
      Boston University
      Pheromonal Localization Overpopulation Regulation Aircraft
      Columbia University, in New York
      Sky Shepherd: Autonomous Aerial Cattle Monitoring
      Embry-Riddle Aeronautical University in Daytona Beach, Florida
      Hog Aerial Mitigation System
      Houston Community College, in Texas
      Soil Testing and Plant Leaf Extraction Drone
      South Dakota State University, in Brookings
      RoboBees
      University of California, Davis
      CattleLog Cattle Management System
      University of Tulsa, in Oklahoma
      The agriculture industry is essential for providing food, fuel, and fiber to the global population. However, it faces significant challenges. NASA Aeronautics is committed to supporting commercial, industrial, and governmental partners in advancing aviation systems to modernize agricultural capabilities.  
      The Gateways to Blue Skies competition is sponsored by NASA’s Aeronautics Research Mission Directorate’s University Innovation Project and is managed by the National Institute of Aerospace. 
      More information on the competition is available on the  AgAir: Aviation Solutions for Agriculture competition website. 
      Facebook logo @NASA@NASAaero@NASAes @NASA@NASAaero@NASAes Instagram logo @NASA@NASAaero@NASAes Linkedin logo @NASA Explore More
      4 min read NASA Cameras on Blue Ghost Capture First-of-its-Kind Moon Landing Footage
      Article 1 day ago 5 min read NASA’s Record-Shattering, Theory-Breaking MMS Mission Turns 10
      Since its launch on March 12, 2015, NASA’s MMS, or Magnetospheric Multiscale, mission has been…
      Article 2 days ago 1 min read NASA Glenn Experts Join Law College to Talk Human Spaceflight 
      Article 2 days ago Keep Exploring Discover More Topics From NASA
      Aeronautics Research Mission Directorate
      Aeronautics
      Drones & You
      Green Aviation Tech
      Share
      Details
      Last Updated Mar 14, 2025 EditorLillian GipsonContactJim Bankejim.banke@nasa.gov Related Terms
      Aeronautics Aeronautics Research Mission Directorate Ames Research Center Armstrong Flight Research Center Glenn Research Center Langley Research Center Transformative Aeronautics Concepts Program University Innovation View the full article
    • NASA
      NASA’s Hubble Finds Kuiper Belt Duo May Be Trio
      By NASA
      Explore Hubble Hubble Home Overview About Hubble The History of Hubble Hubble Timeline Why Have a Telescope in Space? Hubble by the Numbers At the Museum FAQs Impact & Benefits Hubble’s Impact & Benefits Science Impacts Cultural Impact Technology Benefits Impact on Human Spaceflight Astro Community Impacts Science Hubble Science Science Themes Science Highlights Science Behind Discoveries Hubble’s Partners in Science Universe Uncovered Explore the Night Sky Observatory Hubble Observatory Hubble Design Mission Operations Missions to Hubble Hubble vs Webb Team Hubble Team Career Aspirations Hubble Astronauts News Hubble News Hubble News Archive Social Media Media Resources Multimedia Multimedia Images Videos Sonifications Podcasts e-Books Online Activities Lithographs Fact Sheets Posters Hubble on the NASA App Glossary More 35th Anniversary Online Activities 6 Min Read NASA’s Hubble Finds Kuiper Belt Duo May Be Trio
      This artist’s concept depicts one of the possible scenarios for the 148780 Altjira system in the solar system’s Kuiper Belt. Credits:
      NASA, ESA, Joseph Olmsted (STScI) The puzzle of predicting how three gravitationally bound bodies move in space has challenged mathematicians for centuries, and has most recently been popularized in the novel and television show “3 Body Problem.” There’s no problem, however, with what a team of researchers say is likely a stable trio of icy space rocks in the solar system’s Kuiper Belt, found using data from NASA’s Hubble Space Telescope and the ground-based W. M. Keck Observatory in Hawaii.
      If confirmed as the second such three-body system found in the region, the 148780 Altjira system suggests there could be similar triples waiting to be discovered, which would support a particular theory of our solar system’s history and the formation of Kuiper Belt objects (KBOs).
      “The universe is filled with a range of three-body systems, including the closest stars to Earth, the Alpha Centauri star system, and we’re finding that the Kuiper Belt may be no exception,” said the study’s lead author Maia Nelsen, a physics and astronomy graduate of Brigham Young University in Provo, Utah.  
      Known since 1992, KBOs are primitive icy remnants from the early solar system found beyond the orbit of Neptune. To date, over 3,000 KBOs have been cataloged, and scientists estimate there could be several hundred thousand more that measure over 10 miles in diameter. The largest KBO is dwarf planet Pluto. 
      The Hubble finding is crucial support for a KBO formation theory, in which three small rocky bodies would not be the result of collision in a busy Kuiper Belt, but instead form as a trio directly from the gravitational collapse of matter in the disk of material surrounding the newly formed Sun, around 4.5 billion years ago. It’s well known that stars form by gravitational collapse of gas, commonly as pairs or triples, but that idea that cosmic objects like those in the Kuiper Belt form in a similar way is still under investigation.
      This artist’s concept depicts one of the possible scenarios for the 148780 Altjira system in the solar system’s Kuiper Belt. It is likely a hierarchical triple formation, in which two very close companions are orbited by a third member at a greater distance. The inner bodies are too close together to be resolved by the Hubble Space Telescope. But Hubble observations of the orbit of the outermost object were used to determine that the central body is not a single spherical object. Other possibilities are that the inner object is a contact binary, where two separate bodies become so close they touch each other. Another idea is that the central body is oddly flat, like a pancake. Of the 40 identified binary objects in the Kuiper Belt, another system, Lempo, has been found to be a triple. The Altjira system is located in the outer reaches of the solar system, 3.7 billion miles away, or 44 times the distance between Earth and the Sun. In this artist’s concept, our Sun is in the constellation Sagittarius, with the Milky Way in the background. The bright red star Antares appears at the top center. Dust in the plane of our solar system glows as zodiacal light. NASA, ESA, Joseph Olmsted (STScI) The Altjira system is located in the outer reaches of the solar system, 3.7 billion miles away, or 44 times the distance between Earth and the Sun. Hubble images show two KBOs located about 4,700 miles (7,600 kilometers) apart. However, researchers say that repeated observations of the objects’ unique co-orbital motion indicate the inner object is actually two bodies that are so close together they can’t be distinguished at such a great distance.
      “With objects this small and far away, the separation between the two inner members of the system is a fraction of a pixel on Hubble’s camera, so you have to use non-imaging methods to discover that it’s a triple,” said Nelsen.
      This takes time and patience, Nelsen explained. Scientists have gathered a 17-year observational baseline of data from Hubble and the Keck Observatory, watching the orbit of the Altjira system’s outer object.
      “Over time, we saw the orientation of the outer object’s orbit change, indicating that the inner object was either very elongated or actually two separate objects,” said Darin Ragozzine, also of Brigham Young University, a co-author of the Altjira study.
      “A triple system was the best fit when we put the Hubble data into different modeling scenarios,” said Nelsen. “Other possibilities are that the inner object is a contact binary, where two separate bodies become so close they touch each other, or something that actually is oddly flat, like a pancake.”
      Currently, there are about 40 identified binary objects in the Kuiper Belt. Now, with two of these systems likely triples, the researchers say it is more likely they are looking not at an oddball, but instead a population of three-body systems, formed by the same circumstances. However, building up that evidence takes time and repeated observations. 
      Recent research using data from the Keck Observatory and NASA’s Hubble Space Telescope has revealed a potential three-body system in the Kuiper Belt, known as the Altjira system. This discovery challenges traditional collision theories by suggesting that these triple systems might form directly from the gravitational collapse of material in the early solar disk.
      Nasa’s Goddard Space Flight Center; Producer: Paul Morris The only Kuiper Belt objects that have been explored in detail are Pluto and the smaller object Arrokoth, which NASA’s New Horizons mission visited in 2015 and 2019, respectively. New Horizons showed that Arrokoth is a contact binary, which for KBOs means that two objects that have moved closer and closer to one another are now touching and/or have merged, often resulting in a peanut shape. Ragozzine describes Altjira as a “cousin” of Arrokoth, a member of the same group of Kuiper Belt objects. They estimate Altjira is 10 times larger than Arrokoth, however, at 124 miles (200 kilometers) wide.
      While there is no mission planned to fly by Altjira to get Arrokoth-level detail, Nelsen said there is a different upcoming opportunity for further study of the intriguing system. “Altjira has entered an eclipsing season, where the outer body passes in front of the central body. This will last for the next ten years, giving scientists a great opportunity to learn more about it,” Nelsen said. NASA’s James Webb Space Telescope is also joining in on the study of Altjira as it will check if the components look the same in its upcoming Cycle 3 observations. 
      The Hubble study is published in The Planetary Science Journal.
      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, Maryland, manages the telescope and mission operations. Lockheed Martin Space, based in Denver, Colorado, also supports mission operations at Goddard. The Space Telescope Science Institute (STScI) in Baltimore, Maryland, which is operated by the Association of Universities for Research in Astronomy, conducts Hubble science operations for NASA.
      Facebook logo @NASAHubble @NASAHubble Instagram logo @NASAHubble Media Contact:
      Claire Andreoli (claire.andreoli@nasa.gov)
      NASA’s Goddard Space Flight Center, Greenbelt, Maryland
      Leah Ramsay
      Space Telescope Science Institute, Baltimore, Maryland
      Ray Villard
      Space Telescope Science Institute, Baltimore, Maryland
      Share








      Details
      Last Updated Mar 04, 2025 Editor Andrea Gianopoulos Location NASA Goddard Space Flight Center Related Terms
      Hubble Space Telescope Astrophysics Division Goddard Space Flight Center Planetary Science The Kuiper Belt Keep Exploring Discover More Topics From Hubble
      Hubble Space Telescope


      Since its 1990 launch, the Hubble Space Telescope has changed our fundamental understanding of the universe.


      Uncovering Icy Objects in the Kuiper Belt



      Hubble’s Night Sky Challenge



      Reshaping Our Cosmic View: Hubble Science Highlights


      View the full article
    • European Space Agency
      ESA and Red Cross partnership brings space technology to disaster management
      By European Space Agency
      The European Space Agency (ESA) and the International Committee of the Red Cross (ICRC) have signed a Memorandum of Intent (MoI) to harness space technology for humanitarian assistance worldwide. The partnership will combine ESA's space expertise with ICRC's humanitarian reach to develop space-enabled solutions that can help protect and assist communities affected by disasters and conflicts across Europe and beyond.
      View the full article

  • Check out these Videos

×
×
  • Create New...