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NuSTAR Coloring Pages
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NuSTAR Coloring Page – Spacecraft (PDF)
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A coloring page for NASA’s NuSTAR mission. Downloads NuSTAR Coloring Page – Nanoflares (PNG)
Jun 12, 2025
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A coloring page for NASA’s NuSTAR mission. Downloads NuSTAR Coloring Page – Stellar Remains (PNG)
Jun 12, 2025
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A coloring page for NASA’s NuSTAR mission. Downloads NuSTAR Coloring Page – Spiral Galaxies (PNG)
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A coloring page for NASA’s NuSTAR mission. Downloads NuSTAR Coloring Pages – X-rays (PNG)
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NASA’s SLS Rocket: Booster Separation Motors
NASA’s SLS (Space Launch System) solid rocket boosters are the largest, most powerful solid propellant boosters to ever fly. Standing 17 stories tall and burning approximately six tons of propellant every second, each booster generates 3.6 million pounds of a thrust for a total of 7.2 million pounds: more thrust than 14 four-engine jumbo commercial airliners. Together, the SLS twin boosters provide more than 75 percent of the total thrust at launch. Each booster houses eight booster separation motors which are responsible for separating the boosters from the core stage during flight.
At the top of each booster is the frustum—a truncated cone-shaped structure that, along with the nose cone, forms the aerodynamic fairing. This frustum houses four of the separation motors, while the remaining four are located at the bottom within the aft skirt.
Image Credit: NASA/Kevin O’Brien
For more information on the Artemis Campaign, visit:
https://www.nasa.gov/feature/artemis/
News Media ContactJonathan Deal
Marshall Space Flight Center, Huntsville, Ala.
256-544-0034
jonathan.e.deal@nasa.gov
Far Out
Pismis 24, the star cluster seen here in an image released on Dec. 11, 2006, lies within the much larger emission nebula called NGC 6357, located about 8,000 light-years from Earth. The brightest object in the picture was once thought to be a single star with an incredibly large mass of 200 to 300 solar masses. That would have made it by far the most massive known star in the galaxy and would have put it considerably above the currently believed upper mass limit of about 150 solar masses for individual stars. Measurements from NASA’s Hubble Space Telescope, however, discovered that Pismis 24-1 is actually two separate stars, and, in doing so, “halved” their mass to around 100-150 solar masses each.
Image credit: NASA, ESA and Jesús Maíz Apellániz (Instituto de Astrofísica de Andalucía, Spain); Acknowledgment: Davide De Martin (ESA/Hubble)
NASA’s Hurricane Science, Tech, Data Help American Communities
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- NASA supports hurricane preparedness and response by providing satellite data and science before, during, and after storms.
- During hurricane season, NASA delivers timely flood maps, power outage insights, landslide risk assessments, and more to state and federal partners.
- NASA tests innovative technologies, from AI models to mini satellites, to enhance how we monitor hurricanes and their impacts.
- NASA’s long-term tracking of wind, ocean heat, and atmospheric moisture improves understanding of where hurricanes might form and intensify.
With the Atlantic hurricane season underway, NASA is again gearing up to produce cutting-edge research that strengthens the nation’s ability to prepare for and respond to severe weather. From satellite imagery of our planet to improved storm modeling, the agency’s work supports communities in anticipating and reducing the impacts of hurricanes.
In 2024, hurricanes including Helene and Milton showed NASA’s wide-ranging capabilities. As the storms approached the United States, the agency’s network of satellites and scientists swung into action. Within hours of landfall, NASA’s Disasters Response Coordination System was supplying emergency managers and others with flood maps, power outage assessments, and other crucial data.
“People might be surprised how deeply NASA is involved in hurricane science,” said Scott Braun, a research meteorologist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “We are not the agencies issuing forecasts or warnings, but our technologies and science are making fundamental contributions to how we understand, predict, and respond to these storms.”
Disaster Response Powered by NASAWhen hurricanes strike, NASA’s Disasters Response Coordination System aids state and federal agencies, producing and sharing imagery and data, including the NASA Disasters Mapping Portal, which offers tools to assess storm damage.
One crucial tool is NASA’s Black Marble product suite, produced and maintained by NASA Goddard. Using data from the Visible Infrared Imaging Radiometer Suite (VIIRS), researchers and others can map nighttime lights and detect power outages.
Unlike traditional outage maps, which often show only county-level data, NASA’s Black Marble can provide a more detailed view. It offers calibrated, daily observations, enabling high-confidence tracking of neighborhood-level impacts. Emergency response teams in Florida, for instance, have used this imagery to assess conditions near hazardous waste sites before heading into the field after a hurricane.
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The state faced widespread power outages after winds from Hurricane Helene snapped trees, tore off roofs, and toppled power lines. View the full story NASA Earth Observatory/Lauren Dauphin beforeafter
The state faced widespread power outages after winds from Hurricane Helene snapped trees, tore off roofs, and toppled power lines. View the full story NASA Earth Observatory/Lauren Dauphin
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Scientists with NASA’s Black Marble processed data from VIIRS on the NOAA-NASA Suomi NPP satellite to show how power outages darkened Augusta, Georgia, before and after Hurricane Helene. View the full story
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Other NASA technologies map flooding. Scientists at NASA’s Marshall Space Flight Center in Huntsville, Alabama used the European Space Agency’s Sentinel-1 synthetic aperture radar data and other data from the NASA/U.S. Geological Survey Landsat satellites and ESA’s Sentinel-2 to track flooding after multiple hurricanes in 2024, including Helene and Milton.
These maps were shared through the NASA Disasters Mapping Portal with state and federal emergency managers responding to storms’ impacts in Florida, North Carolina, South Carolina, and elsewhere.
“The ability to see floodwaters and landscape changes gives communities a critical edge during response and recovery,” said Shanna McClain, disasters program manager for NASA’s Earth Science Division at NASA headquarters in Washington. “It helps decision-makers act faster when every minute counts.”
Hurricanes don’t just knock out power or trigger flooding — they can also loosen mountains. After Hurricane Helene, NASA scientists partnered with USGS to tackle a different threat: landslides throughout the southern Appalachian Mountains. NASA’s Landslide Hazard Assessment for Situational Awareness tool, developed at NASA Goddard, can help spot landslide-prone areas by combining different troves of satellite data.
“The landslide model brings together a wide range of Earth science,” said Thomas Stanley, a research scientist at NASA Goddard. “It’s a real convergence of satellite observations — soil moisture, precipitation, elevation — each one adding a key piece to the puzzle.”
NASA and USGS used rainfall data and modeling to estimate landslide hazards in the Appalachians following Hurricane Helene, highlighting high-risk zones across western North Carolina. NASA/USGSIn the days during and after Helene, a NASA-USGS team adapted this model to incorporate ground-based rainfall measurements. “This collaboration proved crucial during the critical first days when lingering clouds prevented direct satellite imaging of landslides,” said Kate Allstadt, a research geophysicist at USGS. “Combining NASA and USGS landslide models guided aerial reconnaissance over four states and helped prioritize areas for detailed mapping.”
NASA Disasters Response coordinators also partnered with USGS to manually map likely landslide areas in North Carolina, South Carolina, and Virginia, using high-resolution satellite imagery. This partnership enabled early warnings to agencies such as the North Carolina Geological Survey about potential landslide zones before visual confirmation was possible.
Tracking Hurricanes in Near Real TimeAs hurricanes gather strength over warm ocean waters, NASA’s satellites begin tracking them. One effort providing essential data on hurricanes is the Global Precipitation Measurement (GPM) mission, a collaboration between NASA and the Japan Aerospace Exploration Agency. Passing over storms once or twice per day, the GPM core satellite captures high-resolution data on rainfall intensity and distribution.
“The GPM mission gives us an inside look at where a storm is dropping the most rain and how intense it is,” said George Huffman, GPM project scientist at NASA Goddard. “That kind of information helps forecasters make better predictions and gives communities more time to prepare for flooding and dangerous conditions.”
Huffman’s team leads NASA’s IMERG (Integrated Multi-satellitE Retrievals for GPM) product, which combines GPM Core Observatory data with observations from other satellites to generate near real-time, global rainfall estimates every 30 minutes. For example, IMERG tracked the record-breaking rainfall that fell during Hurricane Harvey in 2017, when parts of Texas saw more than 50 inches of rain.
Satellite-based rainfall data can be especially vital when a big storm like Harvey or Helene knocks out ground-based rain measurements, Huffman said.
Watch Hurricane Harvey as it makes landfall in Texas and Louisiana in 2017. The visualization depicts precipitation measured by the GPM mission, highlighting record-shattering rainfall over Texas and Louisiana. Blue is frozen precipitation, while green to red is rainfall. NASA’s Scientific Visualization StudioNASA also is working to turn precipitation data into practical flood predictions. One such effort, led by NASA-funded hydrologist Ed Beighley at Northeastern University in Boston, merges rainfall estimates from the GPM mission with National Weather Service river discharge models and surface water mapping methods to identify areas likely to experience flooding.
During Hurricane Helene, his team provided early versions of these flood maps to the North Carolina Department of Health and Human Services.
“In some cases, like with Helene, we could see where disasters were likely to be declared just from the rainfall data — days before the disaster declarations were made official,” Beighley said. “That kind of near real-time information could really help counties and health departments prepare and coordinate response efforts.”
That same focus on improving early flood prediction was at the heart of NASA’s response to Hurricane Debby when it made landfall in Florida in August 2024. At NASA Marshall, the Short-term Prediction Research and Transition (SPoRT) team used its Land Information System to track soil moisture levels, crucial for understanding the potential for flooding.
The team’s Streamflow-AI model — a machine learning tool trained to predict how rivers respond to rainfall — also forecasted rising waters in small streams and creeks in Florida and the Carolinas.
“The streamflow tool is used pretty heavily by the National Weather Service now to help inform flood forecasts, which then filters down to evacuation orders,” said Patrick Duran, a NASA Marshall research scientist with SPoRT.
NASA SPoRT’s Streamflow-AI model shows the flooding potential for the Swannanoa River in Asheville, North Carolina, during and after Hurricane Helene. NASA SPoRT Reinventing the Tech That Sees Into StormsNASA doesn’t just collect data on hurricanes or aid in their aftermath — it is redefining the technology we use to observe and understand them. This work is not only improving forecasts and warnings but also helping to fuel the growth of America’s commercial satellite industry.
Take NASA’s TROPICS mission. Short for Time-Resolved Observations of Precipitation structure and storm Intensity with a Constellation of Smallsats, TROPICS represents a fundamental shift in how we might monitor hurricanes from space. Rather than relying solely on intermittent passes by larger satellites, TROPICS uses a group of small, lower-cost satellites working in concert to provide more frequent observations of tropical storm systems — offering a complementary approach to storm monitoring.
During Hurricane Helene, the TROPICS satellites tracked the storm through nearly its entire life cycle, capturing data on its rapid intensification from a tropical depression to a powerful category 4 hurricane before landfall in Florida’s Big Bend region.
Each TROPICS satellite carries a microwave radiometer. Unlike optical sensors, this instrument can see through clouds, making it ideal for tracking storms. The TROPICS’ radiometers are tuned to detect temperature, moisture, and precipitation patterns inside hurricanes.
“The TROPICS mission is really good at providing images of the structure of a storm, showing how well defined the eye is, which is key for improving forecasting,” said William Blackwell, TROPICS principal investigator at MIT Lincoln Laboratory in Massachusetts.
NASA’s TROPICS mission monitored Hurricane Helene throughout its life cycle. This visualization shows how the tropical depression rapidly intensified into a category 4 hurricane before hitting Florida and then moving inland. NASA’s Scientific Visualization StudioTomorrow.io, an American weather company, is using radiometer technology derived from TROPICS as it develops tools for commercial weather forecasting. The company also is working to adapt radar technology first tested on NASA’s RainCube mission.
RainCube, a small satellite about the size of a shoebox developed by NASA’s Jet Propulsion Laboratory in Southern California, operated from 2018 to 2020. It used radar to study precipitation, sending signals toward Earth and analyzing how long they took to bounce back, and how strong they were after reflecting off raindrops, snowflakes, and cloud ice.
Full-scale satellites have been using radar technology to make that kind of measurement for years. “The key thing with RainCube wasn’t bringing in new science,” said Simone Tanelli, RainCube principal scientist at JPL. “Instead, it was showing that we could give you similar data with a box that’s roughly 100 times smaller in volume than a full-size satellite.”
NASA also tests how other small, lower-cost instruments could transform how we monitor tropical storms. Two such tools — COWVR, short for Compact Ocean Wind Vector Radiometer measures ocean surface winds, and TEMPEST, short for Temporal Experiment for Storms and Tropical Systems tracks atmospheric water vapor — were launched to the International Space Station in 2021.
Using technology and designs from JPL and other NASA teams, TEMPEST and COWVR already are proving their value. Their data has been used by the U.S. Joint Typhoon Warning Center to help track and forecast powerful storms, such as Tropical Cyclone Mandous in December 2022.
Data from the COWVR and TEMPEST instruments aboard the ISS was used to create this image of Tropical Cyclone Mandous, which forecasters used to understand the December 2022 storm’s intensity and predict its path toward southern India. U.S. Joint Typhoon Warning Center/U.S. Naval Research LaboratoryNASA researchers also are investigating lightning, which has emerged as a key clue in predicting rapid storm intensification, a dangerous phase of the hurricane life cycle that is one of the most difficult aspects of hurricane forecasting. Spikes in lightning activity, especially in the eyewall, can be an early sign that a storm is about to strengthen quickly.
The agency’s SPoRT project is researching how lightning data from the Geostationary Lightning Mapper can improve hurricane forecasting. This sensor provides a nearly continuous view of lightning activity over oceans and in remote land regions that have fewer weather observations. The instrument rides aboard NOAA’s (National Oceanic and Atmospheric Administration) GOES weather satellites.
“By studying the size and energy of lightning flashes inside hurricanes, we’re learning how they might signal whether a storm is about to intensify or weaken,” said Duran. “It’s an evolving area of research with a lot of potential.”
During Hurricane Helene, SPoRT’s lightning analyses revealed a burst of strong, frequent flashes in the eyewall just before the storm surged from category 2 to category 4 intensity. That’s exactly the kind of signal researchers hope to detect more reliably in the future.
Bright, large lightning flashes seen in Hurricane Helene’s eyewall, captured by NASA SPoRT’s Geostationary Lightning Mapper viewer, indicate the storm’s rapid intensification from category 2 to 4 just hours before landfall. NASA SPoRTNASA frequently uses its airplanes to test new hurricane tech, too. In one recent example, scientists from NASA’s Langley Research Center in Hampton, Virginia, flew a cutting-edge 3-D Doppler wind lidar system across the United States, including making passes through the edges of Hurricane Helene. The instrument is designed to capture high-resolution wind data that can improve predictions of rapidly evolving storms, such as hurricanes and severe thunderstorms, where accurate wind observations are essential, but often lacking.
Braun compared these multiple data streams — from TROPICS, GPM, and other instruments — to medical imaging. “Think about how doctors use different types of scans like X-rays, MRIs, and ultrasound to understand what’s happening inside a patient’s body,” he said. “We’re doing something similar with hurricanes. Each system gives us a different view of the storm’s internal structure and environment, with the goal of improving forecasts.”
Watching For Hurricane Warning SignsLong before a hurricane takes shape, NASA satellites are already scanning the global ocean and atmosphere, closely tracking the conditions that give rise to powerful storms. One of the most important indicators is sea surface temperature.
NASA combines data from multiple satellites and sensors — such as the Moderate Resolution Imaging Spectroradiometer (MODIS) and VIIRS — to produce sea surface temperature maps like JPL’s Multi-scale Ultra-high Resolution Sea Surface Temperature product and SPoRT’s Sea Surface Temperature Composite product. These global maps, updated daily, support users such as the National Weather Service.
“Having high-resolution, reliable sources of sea surface temperature data is extremely useful,” said Brian McNoldy of the University of Miami, who studies hurricanes. “From one day to the next, these datasets help identify which parts of the tropical Atlantic are above or below average. That information lets forecasters anticipate where storms might strengthen or weaken.”
Hurricane Milton rapidly intensified to category 5 strength over warm gulf waters. View the full story NASA Earth Observatory/Wanmei LiangOcean surface temperatures are only part of the story. NASA also monitors sea surface height with missions such as Sentinel-6 Michael Freilich and SWOT (Surface Water and Ocean Topography), using these measurements as indicators for deeper ocean heat content, a key source of energy fueling hurricanes.
Other NASA-built satellites and sensors measure atmospheric moisture, ocean surface winds, and atmospheric stability, all essential factors influencing whether a storm strengthens or dissipates.
NASA also uses its aircraft to study early storm development up close. In 2022, the agency’s Convective Processes Experiment-Cabo Verde airborne campaign flew off the northwest coast of Africa to study weather systems that can give rise to hurricanes.
The team focused in part on African easterly waves — swirling disturbances in the atmosphere that often become the seeds of Atlantic storms. One of the waves they observed later developed into Tropical Storm Hermine. The mission also gathered data that same year just before hurricanes Fiona and Ian formed.
“The strength of NASA’s pre-storm monitoring lies in both the breadth of measurements we take and the decades-long consistency behind them,” said Will McCarty, manager of weather programs at NASA Headquarters.
“By combining data on sea surface temperature, ocean heat content, wind patterns, and more, we can see early on when conditions align dangerously — often before a storm visibly forms,” McCarty said. “It’s how we turn early warning into early action.”
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NASA Sensor on Space Station Eyes Contamination off California Coast
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Preparations for Next Moonwalk Simulations Underway (and Underwater) Instruments in space are helping scientists map wastewater plumes flowing into the Pacific Ocean from the heavily polluted Tijuana River, seen here with the San Diego sky-line to the north. NOAAProof-of-concept results from the mouth of the Tijuana River in San Diego County show how an instrument called EMIT could aid wastewater detection.
An instrument built at NASA’s Jet Propulsion Laboratory to map minerals on Earth is now revealing clues about water quality. A recent study found that EMIT (Earth Surface Mineral Dust Source Investigation) was able to identify signs of sewage in the water at a Southern California beach.
The authors of the study examined a large wastewater plume at the mouth of the Tijuana River, south of Imperial Beach near San Diego. Every year, millions of gallons of treated and untreated sewage enter the river, which carries pollutants through communities and a national reserve on the U.S.-Mexico border before emptying into the Pacific Ocean. Contaminated coastal waters have been known to impact human health — from beachgoers to U.S. Navy trainees — and harm marine ecosystems, fisheries, and wildlife.
For decades scientists have tracked water quality issues like harmful algal blooms using satellite instruments that analyze ocean color. Shades that range from vibrant red to bright green can reveal the presence of algae and phytoplankton. But other pollutants and harmful bacteria are more difficult to monitor because they’re harder to distinguish with traditional satellite sensors.
A plume spreads out to sea in this image captured off San Diego by the Sentinel-2 satellite on March 24, 2023. Both a spectroradiometer used to analyze water samples (yellow star) and NASA’s EMIT identified in the plume signs of a type of bacterium that can sicken humans and animals.SDSU/Eva ScrivnerThat’s where EMIT comes in. NASA’s hyperspectral instrument orbits Earth aboard the International Space Station, observing sunlight reflecting off the planet below. Its advanced optical components split the visible and infrared wavelengths into hundreds of color bands. By analyzing each satellite scene pixel by pixel at finer spatial resolution, scientists can discern what molecules are present based on their unique spectral “fingerprint.”
Scientists compared EMIT’s observations of the Tijuana River plume with water samples they tested on the ground. Both EMIT and the ground-based instruments detected a spectral fingerprint pointing to phycocyanin, a pigment in cyanobacteria, an organism that can sicken humans and animals that ingest or inhale it.
‘Smoking Gun’Many beachgoers are already familiar with online water-quality dashboards, which often rely on samples collected in the field, said Christine Lee, a scientist at JPL in Southern California and a coauthor of the study. She noted the potential for EMIT to complement these efforts.
“From orbit you are able to look down and see that a wastewater plume is extending into places you haven’t sampled,” Lee said. “It’s like a diagnostic at the doctor’s office that tells you, ‘Hey, let’s take a closer look at this.’”
Lead author Eva Scrivner, a doctoral student at the University of Connecticut, said that the findings “show a ‘smoking gun’ of sorts for wastewater in the Tijuana River plume.” Scrivner, who led the study while at San Diego State University, added that EMIT could be useful for filling data gaps around intensely polluted sites where traditional water sampling takes a lot of time and money.
EMIT’s Many UsesThe technology behind EMIT is called imaging spectroscopy, which was pioneered at JPL in the 1980s. Imaging spectrometers developed at JPL over the decades have been used to support areas ranging from agriculture to forest health and firefighting.
When EMIT was launched in July 2022, it was solely aimed at mapping minerals and dust in Earth’s desert regions. That same sensitivity enabled it to spot the phycocyanin pigments off the California coast.
Scrivner hadn’t anticipated that an instrument initially devoted to exploring land could reveal insights about water. “The fact that EMIT’s findings over the coast are consistent with measurements in the field is compelling to water scientists,” she said. “It’s really exciting.”
To learn more about EMIT, visit:
https://earth.jpl.nasa.gov/emit/
News Media ContactsJane J. Lee / Andrew Wang
Jet Propulsion Laboratory, Pasadena, Calif.
626-379-6874 / 818-354-0307
jane.j.lee@jpl.nasa.gov / andrew.wang@jpl.nasa.gov
Written by Sally Younger
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NASA, Museum to Launch Junior Pilot School for Young Innovators
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Preparations for Next Moonwalk Simulations Underway (and Underwater) Students from Tropico Middle School in Rosamond, California, build their own paper planes as part of a project during NASA Aero Fair on April 9, 2025.NASA/Genaro VavurisA new generation of aerospace explorers will soon embark on a hands-on summer experience focusing on careers in science, mathematics, engineering, and technology (STEM). This month, NASA’s Armstrong Flight Research Center in Edwards, California, and the Flight Test Museum Foundation will launch the 2025 Junior Test Pilot School.
Held at Blackbird Airpark and Joe Davies Heritage Airpark in Palmdale, California, this six-week program invites elementary-aged students to step into the shoes of test pilots and engineers from 9 a.m. to 2 p.m. Mondays through Fridays, June 16 through July 25. Registration is free through participating school districts and the Flight Test Museum. Students will have direct access to legendary aircraft such as A-12, SR-71, U-2, F-86 Sabre, and NASA Boeing 747 Space Shuttle Carrier Aircraft.
The Junior Test Pilot School combines authentic NASA-designed curriculum, immersive aerospace activities, and direct engagement with engineers, test pilots, and scientists to inspire future aerospace professionals in the Antelope Valley – home to one of the nation’s highest concentrations of STEM careers.
“This program offers more than a glimpse into aerospace, it provides students a hands-on opportunity to solve real-world problems and see themselves in future STEM roles,” said Dr. Amira Flores, program integration manager for NASA’s California Office of STEM Engagement.
Daily lessons cover eight core modules: flight principles, stealth engineering, altitude effects, speed and g-force, payload impact, maneuverability, reconnaissance design, and jet engine systems.
Additionally, in collaboration with NASA Armstrong’s Aero Fair program, students will be guided through the program’s Wildfire Design Challenge by a NASA volunteer. Following the engineering design process, students will collaborate to design and build a prototype of an aerial vehicle that suppresses wildfires.
“Our junior test pilots learn to analyze the aircraft to figure out why they were designed the way they are and think like an engineer,” said Lisa Sheldon Brown, director of education at the Flight Test Museum. “Research shows that academic trajectory is set by fifth grade, making this the critical window to inspire STEM interest and career awareness.”
The program is delivered in partnership with the City of Palmdale and is supported by industry sponsors, including Lockheed Martin and Northrop Grumman. These partners not only provide funding and volunteers but also elevate career exposure by introducing students to diverse aerospace professionals within the region.
NASA Armstrong is a hub of aeronautical innovation and STEM workforce development in the Antelope Valley. Through programs like Aero Fair and partnerships like Junior Test Pilots School, Armstrong inspires and equips the next generation of engineers, pilots, and scientists.
The Flight Test Museum Foundation preserves the legacy and promotes the future of aerospace through education programs and historical preservation at the Blackbird Airpark and forthcoming Flight Test Museum at Edwards Air Force Base in Edwards, California.
For more about NASA’s Armstrong Flight Research Center, visit:
https://www.nasa.gov/armstrong
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Elena Aguirre
Armstrong Flight Research Center, Edwards, California
(661) 276-7004
elena.aguirre@nasa.gov
Dede Dinius
Armstrong Flight Research Center, Edwards, California
(661) 276-5701
darin.l.dinius@nasa.gov
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NASA Launching Rockets Into Radio-Disrupting Clouds
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NASA Launching Rockets Into Radio-Disrupting CloudsNASA is launching rockets from a remote Pacific island to study mysterious, high-altitude cloud-like structures that can disrupt critical communication systems. The mission, called Sporadic-E ElectroDynamics, or SEED, opens its three-week launch window from Kwajalein Atoll in the Marshall Islands on Friday, June 13.
The atmospheric features SEED is studying are known as Sporadic-E layers, and they create a host of problems for radio communications. When they are present, air traffic controllers and marine radio users may pick up signals from unusually distant regions, mistaking them for nearby sources. Military operators using radar to see beyond the horizon may detect false targets — nicknamed “ghosts” — or receive garbled signals that are tricky to decipher. Sporadic-E layers are constantly forming, moving, and dissipating, so these disruptions can be difficult to anticipate.
An animated illustration depicts Sporadic-E layers forming in the lower portions of the ionosphere, causing radio signals to reflect back to Earth before reaching higher layers of the ionosphere. NASA’s Goddard Space Flight Center/Conceptual Image LabSporadic-E layers form in the ionosphere, a layer of Earth’s atmosphere that stretches from about 40 to 600 miles (60 to 1,000 kilometers) above sea level. Home to the International Space Station and most Earth-orbiting satellites, the ionosphere is also where we see the greatest impacts of space weather. Primarily driven by the Sun, space weather causes myriad problems for our communications with satellites and between ground systems. A better understanding of the ionosphere is key to keeping critical infrastructure running smoothly.
The ionosphere is named for the charged particles, or ions, that reside there. Some of these ions come from meteors, which burn up in the atmosphere and leave traces of ionized iron, magnesium, calcium, sodium, and potassium suspended in the sky. These “heavy metals” are more massive than the ionosphere’s typical residents and tend to sink to lower altitudes, below 90 miles (140 kilometers). Occasionally, they clump together to create dense clusters known as Sporadic-E layers.
The Perseids meteor shower peaks in mid-August. Meteors like these can deposit metals into Earth’s ionosphere that can help create cloud-like structures called Sporadic-E layers. NASA/Preston Dyches“These Sporadic-E layers are not visible to naked eye, and can only be seen by radars. In the radar plots, some layers appear like patchy and puffy clouds, while others spread out, similar to an overcast sky, which we call blanketing Sporadic-E layer” said Aroh Barjatya, the SEED mission’s principal investigator and a professor of engineering physics at Embry-Riddle Aeronautical University in Daytona Beach, Florida. The SEED team includes scientists from Embry-Riddle, Boston College in Massachusetts, and Clemson University in South Carolina.
“There’s a lot of interest in predicting these layers and understanding their dynamics because of how they interfere with communications,” Barjatya said.
A Mystery at the EquatorScientists can explain Sporadic-E layers when they form at midlatitudes but not when they appear close to Earth’s equator — such as near Kwajalein Atoll, where the SEED mission will launch.
In the Northern and Southern Hemispheres, Sporadic-E layers can be thought of as particle traffic jams.
Think of ions in the atmosphere as miniature cars traveling single file in lanes defined by Earth’s magnetic field lines. These lanes connect Earth end to end — emerging near the South Pole, bowing around the equator, and plunging back into the North Pole.
A conceptual animation shows Earth’s magnetic field. The blue lines radiating from Earth represent the magnetic field lines that charged particles travel along. NASA’s Goddard Space Flight Center/Conceptual Image LabAt Earth’s midlatitudes, the field lines angle toward the ground, descending through atmospheric layers with varying wind speeds and directions. As the ions pass through these layers, they experience wind shear — turbulent gusts that cause their orderly line to clump together. These particle pileups form Sporadic-E layers.
But near the magnetic equator, this explanation doesn’t work. There, Earth’s magnetic field lines run parallel to the surface and do not intersect atmospheric layers with differing winds, so Sporadic-E layers shouldn’t form. Yet, they do — though less frequently.
“We’re launching from the closest place NASA can to the magnetic equator,” Barjatya said, “to study the physics that existing theory doesn’t fully explain.”
Taking to the SkiesTo investigate, Barjatya developed SEED to study low-latitude Sporadic-E layers from the inside. The mission relies on sounding rockets — uncrewed suborbital spacecraft carrying scientific instruments. Their flights last only a few minutes but can be launched precisely at fleeting targets.
Beginning the night of June 13, Barjatya and his team will monitor ALTAIR (ARPA Long-Range Tracking and Instrumentation Radar), a high-powered, ground-based radar system at the launch site, for signs of developing Sporadic-E layers. When conditions are right, Barjatya will give the launch command. A few minutes later, the rocket will be in flight.
The SEED science team and mission management team in front of the ARPA Long-Range Tracking and Instrumentation Radar (ALTAIR). The SEED team will use ALTAIR to monitor the ionosphere for signs of Sporadic-E layers and time the launch. U.S. Army Space and Missile Defense CommandOn ascent, the rocket will release colorful vapor tracers. Ground-based cameras will track the tracers to measure wind patterns in three dimensions. Once inside the Sporadic-E layer, the rocket will deploy four subpayloads — miniature detectors that will measure particle density and magnetic field strength at multiple points. The data will be transmitted back to the ground as the rocket descends.
On another night during the launch window, the team will launch a second, nearly identical rocket to collect additional data under potentially different conditions.
Barjatya and his team will use the data to improve computer models of the ionosphere, aiming to explain how Sporadic-E layers form so close to the equator.
“Sporadic-E layers are part of a much larger, more complicated physical system that is home to space-based assets we rely on every day,” Barjatya said. “This launch gets us closer to understanding another key piece of Earth’s interface to space.”
NASA’s Goddard Space Flight Center, Greenbelt, Md.
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NASA’s Roman to Peer Into Cosmic ‘Lenses’ to Better Define Dark Matter
A funky effect Einstein predicted, known as gravitational lensing — when a foreground galaxy magnifies more distant galaxies behind it — will soon become common when NASA’s Nancy Grace Roman Space Telescope begins science operations in 2027 and produces vast surveys of the cosmos.
This image shows a simulated observation from NASA’s Nancy Grace Roman Space Telescope with an overlay of its Wide Field Instrument’s field of view. More than 20 gravitational lenses, with examples shown at left and right, are expected to pop out in every one of Roman’s vast observations. A journal paper led by Bryce Wedig, a graduate student at Washington University in St. Louis, Missouri, estimates that of those Roman detects, about 500 from the telescope’s High-Latitude Wide-Area Survey will be suitable for dark matter studies. By examining such a large population of gravitational lenses, the researchers hope to learn a lot more about the mysterious nature of dark matter.Credit: NASA, Bryce Wedig (Washington University), Tansu Daylan (Washington University), Joseph DePasquale (STScI)A particular subset of gravitational lenses, known as strong lenses, is the focus of a new paper published in the Astrophysical Journal led by Bryce Wedig, a graduate student at Washington University in St. Louis. The research team has calculated that over 160,000 gravitational lenses, including hundreds suitable for this study, are expected to pop up in Roman’s vast images. Each Roman image will be 200 times larger than infrared snapshots from NASA’s Hubble Space Telescope, and its upcoming “wealth” of lenses will vastly outpace the hundreds studied by Hubble to date.
Roman will conduct three core surveys, providing expansive views of the universe. This science team’s work is based on a previous version of Roman’s now fully defined High-Latitude Wide-Area Survey. The researchers are working on a follow-up paper that will align with the final survey’s specifications to fully support the research community.
“The current sample size of these objects from other telescopes is fairly small because we’re relying on two galaxies to be lined up nearly perfectly along our line of sight,” Wedig said. “Other telescopes are either limited to a smaller field of view or less precise observations, making gravitational lenses harder to detect.”
Gravitational lenses are made up of at least two cosmic objects. In some cases, a single foreground galaxy has enough mass to act like a lens, magnifying a galaxy that is almost perfectly behind it. Light from the background galaxy curves around the foreground galaxy along more than one path, appearing in observations as warped arcs and crescents. Of the 160,000 lensed galaxies Roman may identify, the team expects to narrow that down to about 500 that are suitable for studying the structure of dark matter at scales smaller than those galaxies.
“Roman will not only significantly increase our sample size — its sharp, high-resolution images will also allow us to discover gravitational lenses that appear smaller on the sky,” said Tansu Daylan, the principal investigator of the science team conducting this research program. Daylan is an assistant professor and a faculty fellow at the McDonnell Center for the Space Sciences at Washington University in St. Louis. “Ultimately, both the alignment and the brightness of the background galaxies need to meet a certain threshold so we can characterize the dark matter within the foreground galaxies.”
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This video shows how a background galaxy’s light is lensed or magnified by a massive foreground galaxy, seen at center, before reaching NASA’s Roman Space Telescope. Light from the background galaxy is distorted, curving around the foreground galaxy and appearing more than once as warped arcs and crescents. Researchers studying these objects, known as gravitational lenses, can better characterize the mass of the foreground galaxy, which offers clues about the particle nature of dark matter.Credit: NASA, Joseph Olmsted (STScI) What Is Dark Matter?Not all mass in galaxies is made up of objects we can see, like star clusters. A significant fraction of a galaxy’s mass is made up of dark matter, so called because it doesn’t emit, reflect, or absorb light. Dark matter does, however, possess mass, and like anything else with mass, it can cause gravitational lensing.
When the gravity of a foreground galaxy bends the path of a background galaxy’s light, its light is routed onto multiple paths. “This effect produces multiple images of the background galaxy that are magnified and distorted differently,” Daylan said. These “duplicates” are a huge advantage for researchers — they allow multiple measurements of the lensing galaxy’s mass distribution, ensuring that the resulting measurement is far more precise.
Roman’s 300-megapixel camera, known as its Wide Field Instrument, will allow researchers to accurately determine the bending of the background galaxies’ light by as little as 50 milliarcseconds, which is like measuring the diameter of a human hair from the distance of more than two and a half American football fields or soccer pitches.
The amount of gravitational lensing that the background light experiences depends on the intervening mass. Less massive clumps of dark matter cause smaller distortions. As a result, if researchers are able to measure tinier amounts of bending, they can detect and characterize smaller, less massive dark matter structures — the types of structures that gradually merged over time to build up the galaxies we see today.
With Roman, the team will accumulate overwhelming statistics about the size and structures of early galaxies. “Finding gravitational lenses and being able to detect clumps of dark matter in them is a game of tiny odds. With Roman, we can cast a wide net and expect to get lucky often,” Wedig said. “We won’t see dark matter in the images — it’s invisible — but we can measure its effects.”
“Ultimately, the question we’re trying to address is: What particle or particles constitute dark matter?” Daylan added. “While some properties of dark matter are known, we essentially have no idea what makes up dark matter. Roman will help us to distinguish how dark matter is distributed on small scales and, hence, its particle nature.”
Preparations ContinueBefore Roman launches, the team will also search for more candidates in observations from ESA’s (the European Space Agency’s) Euclid mission and the upcoming ground-based Vera C. Rubin Observatory in Chile, which will begin its full-scale operations in a few weeks. Once Roman’s infrared images are in hand, the researchers will combine them with complementary visible light images from Euclid, Rubin, and Hubble to maximize what’s known about these galaxies.
“We will push the limits of what we can observe, and use every gravitational lens we detect with Roman to pin down the particle nature of dark matter,” Daylan said.
The Nancy Grace Roman Space Telescope is managed at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, with participation by NASA’s Jet Propulsion Laboratory in Southern California; Caltech/IPAC in Pasadena, California; the Space Telescope Science Institute in Baltimore; and a science team comprising scientists from various research institutions. The primary industrial partners are BAE Systems, Inc. in Boulder, Colorado; L3Harris Technologies in Melbourne, Florida; and Teledyne Scientific & Imaging in Thousand Oaks, California.
By Claire Blome
Space Telescope Science Institute, Baltimore, Md.
Studying Storms from Space Station
Scientists use instruments on the International Space Station to study phenomena in Earth’s ionosphere or upper atmosphere including thunderstorms, lightning, and transient luminous events (TLEs). TLEs take many forms, including blue jets, discharges that grow upward into the stratosphere from cloud tops, and colorful bursts of energy above storms called Stratospheric/Mesospheric Perturbations Resulting from Intense Thunderstorm Electrification or SPRITES.
Red SPRITES are visible above a line of thunderstorms off the coast of South Africa.NASATLEs can disrupt communication systems on the ground and pose a threat to aircraft and spacecraft. Understanding these phenomena also could improve atmospheric models and weather predictions. Because these events occur well above the altitudes of normal lightning and storm clouds, they are difficult to observe from the ground. ASIM, an investigation from ESA (European Space Agency), uses a monitor on the exterior of the space station to collect data on TLEs. These data are providing insights into how thunderstorms affect Earth’s atmosphere and helping to improve atmospheric models used for weather and climate predictions.
ELVES and coronasA study based on ASIM data confirmed that lightning-like discharges at the tops of thunderstorms can create another type of TLE, massive glowing rings in the upper atmosphere known as Emissions of Light and VLF Perturbations from EMP events, or ELVES. This experiment showed that these discharges influence the ionosphere and helped scientists learn more about Earth and space weather.
ASIM-based research also described the physical properties of different types of corona discharges in thunderstorm clouds. Corona discharges are linked to powerful but short-lived electrical bursts near the tops of clouds. The data provide a reference to support further investigation into the mechanisms behind these discharges and their role in the initiation of lightning, an important problem in lightning physics.
Other researchers used ASIM measurements along with ground-based electric field measurements to determine the height of a blue discharge from a thundercloud.
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Lightning on Earth as captured from the space station.NASAAnother ESA investigation, Thor-Davis, evaluated use of a special camera to photograph high-altitude thunderstorms through the windows of the space station’s cupola. The camera can observe thunderstorm electrical activity at up to 100,000 frames per second and could be a useful tool for space-based observation of severe electrical storms and other applications.
Seeing storms from satellites Deployment of the Light-1 CubeSat from the space station.NASAThe JAXA (Japan Aerospace Exploration Agency) investigation Light-1 CubeSat used detectors integrated into a compact satellite to observe terrestrial gamma-ray flashes in the upper atmosphere. These high intensity, energetic events can expose aircraft, aircraft electronics, and passengers to excessive radiation. Researchers are planning to compare data collected from the mission with ground-based observations to provide more comprehensive maps of lightning and thunderstorms in the atmosphere. Small satellite detectors could cost less and be manufactured in less time than other approaches.
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Curiosity Rover Blog — Sols 4566-4567: Drilling Success
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Written by Michelle Minitti, Planetary Geologist at Framework
Earth planning date: Monday, June 9, 2025
The image above shows the drill poised on the surface of Mars at the start of our attempt to collect sample at “Altadena” over the weekend. Now we know, from subsequent imaging and telemetry, that the drill activity was successful, allowing planning today to focus on delivering sample powder to CheMin and SAM. CheMin and SAM will give us their distinct and valuable insights into the mineralogy (CheMin) and volatiles and organic compounds (SAM) within Altadena, which are key to our continued unravelling the history of Mt. Sharp. It is always exciting to find out what each of these instruments uncovers from Martian samples.
In addition to those sample deliveries, we had three other Altadena-focused activities. We acquired ChemCam RMI of the drill hole which helps ChemCam refine their laser targeting for future LIBS analyses of the drill hole. We planned a ChemCam passive spectroscopy observation of the cuttings around the drill hole for more insight into the mineralogy of the sample. We also included a single Mastcam M100 image of the drill hole which helps us track the wind activity at the drill site and thus the stability of the cuttings ahead of planned observations with APXS and MAHLI.
The weekend activities ran faster and more efficiently than modeled so that we had power to add additional science observations into the plan. We gathered more ChemCam data from the bedrock near Altadena at the target “Bolsa Chica,” and planned two ChemCam RMI long distance mosaics on sedimentary structures within “Texoli” butte and nearby boxwork structures. We kept track of the environment around us with yet more Mastcam imaging for wind-induced changes in the “Camp Williams” area, regular RAD and REMS measurements, two DAN measurements, and Navcam dust devil imaging and cloud movies.
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Portrait of a Bobcat
A NASA photographer captured this June 14, 2013, photo of a bobcat wading through a waterway near Launch Pad 38B at NASA’s Kennedy Space Center in Florida. Bobcats are just one of over 30 mammal species that call the Merritt Island National Wildlife Refuge home, along with hundreds of bird, fish, amphibian, and reptile species. The refuge, which shares space with NASA Kennedy, is also home to over 1,000 known plant species.
See more photos of mammals around NASA.
Image credit: NASA/Tony Gray
The Earth Observer Editor’s Corner: April–June 2025
9 min read
The Earth Observer Editor’s Corner: April–June 2025NASA’s Earth science missions have continued to demonstrate remarkable adaptability and innovation, balancing the legacy of long-standing satellites with the momentum of cutting-edge new technologies. The Terra platform, the first of three Earth Observing System flagship missions, has been in orbit since December 1999. Over a quarter-century later, four of its five instruments continue to deliver valuable data, despite recent power challenges. As of this writing, Terra’s Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) – Visible–Near Infrared (VNIR) and Thermal Infrared (TIR) bands, Multi-angle Imaging SpectroRadiometer (MISR), Moderate Resolution Imaging Spectroradiometer (MODIS), and one of the two Clouds and the Earth’s Radiant Energy Systems (CERES) instruments onboard, are all still producing science data. For reasons explained below, only the Measurement of Pollution in the Troposphere (MOPITT) instrument has been shut down completely, after 25 years of successful operations. The longevity of the Terra instruments is credited to Terra’s instrument team members, who have skillfully adjusted operations to compensate for the reduction in power and extend Terra’s scientific contributions for as long as possible.
Terra has been experiencing power-based limitations caused by platform orbital changes and solar array impacts. On November 28, 2024, one of Terra’s power-transmitting shunt units failed. A response team reviewed Terra’s status, and discussed potential impacts and options. Consequently, the team changed the battery charge rate and reduced spacecraft power demands by placing the ASTER instrument into safe mode.
In order to maintain power margins, the Terra team also moved the MOPITT instrument from science mode into safe mode on February 4, 2025, ceasing data collection. On April 9, 2025, the Terra project determined that additional power was needed for the platform and MOPITT was moved from safe mode and fully turned off, ending the instrument’s carbon monoxide data record of near-global coverage every three days.
MOPITT was the Canadian Space Agency’s (CSA) contribution to the Earth Observing System. Launched as part of Terra’s payload in 1999, it became the longest-running air quality monitor in space, and the longest continuously operating Canadian space mission in history. MOPITT’s specific focus was on the distribution, transport, sources, and sinks of carbon monoxide (CO) in the troposphere – see Figure. The spectrometer’s marquee Earthdata products have included MOPITT Near Real-Time Datasets and offerings from the MOPITT Science Investigator-led Processing System (MOPITT SIPS). From tracking pollution from wildfires to providing data that informs international climate agreements, MOPITT served as a powerful tool for gathering data about pollution in the lowest portion of Earth’s atmosphere, informing research, policies, and even helping to advance forecasting models used by scientists worldwide. Congratulations to the MOPITT team for more than 25 years of groundbreaking science and international collaboration!
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As chance would have it, the MOPITT Team had planned a 25th anniversary celebration in April, 10–11, 2025, at CSA headquarters in Longueuil, Quebec and online – which began one day after the instrument was shut down. The celebration was a fitting closeout to the MOPITT mission and a celebration of its accomplishments. Over the two days, more than 45 speakers shared memories and presented findings from MOPITT’s quarter-century record of atmospheric carbon monoxide monitoring. Its data showed a global decline in carbon monoxide emissions over two decades and could also track the atmospheric transport of the gas from fires and industry from individual regions. MOPITT is a testament to remarkable international collaboration and achievement. As it is officially decommissioned, its data record will continue to drive research for years to come.
The Director General of the Canadian Space Agency—a key MOPITT partner—delivered remarks, and both Ken Jucks [NASA HQ— Program Manager for the Upper Atmosphere Research Program (UARP)] and Helen Worden [National Center for Atmospheric Research— MOPITT U.S. Principal Investigator] attended representing the U.S.
More information is available in a recently-released Terra blog post and on the Canadian Space Agency MOPITT website.
After continued investigation and monitoring of platform battery status, the Terra Flight Operations Team (FOT) determined there was sufficient power to resume imaging with ASTER’s VNIR bands, and as a result, ASTER once again began collecting VNIR data on January 17, 2025. Subsequently, ASTER resumed acquisitions for the TIR bands on April 15, 2025. (The ASTER Shortwave Infrared (SWIR) bands have been shut down since 2008).
As one long-serving mission sunsets its operations, new missions are stepping in to carry forward the legacy of Earth system science with fresh capabilities and approaches. Launched on May 25, 2023, the NASA Time-Resolved Observations of Precipitation structure and storm Intensity with a Constellation of Smallsats (TROPICS) mission provides a groundbreaking approach to studying tropical cyclones using a passive microwave sounder CubeSat constellation. TROPICS uses multiple small satellites flying in a carefully engineered formation to measure precipitation structure as well as temperature and humidity profiles both within and outside of storms.
Unlike traditional polar-orbiting satellites, TROPICS’ low-inclination orbits allow for hourly revisits over tropical regions, enabling scientists to better monitor storm structure, intensity changes, and key processes like upper-level warm core formation and convective bursts.
The mission has already significantly contributed to operational forecasting and scientific research. With over 10 billion observations to date, TROPICS data have been used to validate storm models, support early-warning systems, and improve forecasts for events like Hurricane Franklin and Typhoon Kong-rey. Collaborations with agencies like the National Hurricane Center and the Joint Typhoon Warning Center have shown the value of TROPICS channels, particularly the 204.8 GHz channel, in identifying storm structure and intensity. The data are publicly available through the Goddard Earth Sciences Data and Information Services Center (GES DISC), and TROPICS continues to set the stage for the next generation of rapid-revisit Earth observation missions. To read more about the last two years of successful science operations with TROPICS, see NASA’s TROPICS Mission: Offering Detailed Images and Analysis of Tropical Cyclones.
While some missions focus on monitoring atmospheric processes, others are expanding the frontiers of Earth observation in entirely different domains—ranging from seafloor mapping to land surface monitoring and beyond. NASA’s Ice, Clouds, and land Elevation Satellite–2 (ICESat-2) mission continues to provide critical data on Earth’s changing ice sheets, glaciers, and other environmental features. In March 2025, the satellite achieved a significant milestone by firing its two trillionth laser pulse, measuring clouds off the coast of East Antarctica. Despite challenges, such as a solar storm in May 2024 that temporarily disrupted operations, the mission has resumed full functionality, providing high-resolution data that has enabled scientists to map over 16 years of ice sheet changes. The mission’s advanced laser altimeter system, ATLAS, continues to deliver unprecedented detail in monitoring Earth’s changing ice sheets, glaciers, forests, and ocean floor.
The ICESat-2 Satellite-Derived Bathymetry (SDB) workshop, held on March 17, 2025, in conjunction with the US-Hydro meeting, brought together experts and stakeholders from government, academia, and industry to explore the current capabilities and future potential of satellite-based seafloor mapping. With over 2000 journal articles referencing ICESat-2 in the context of bathymetry, the workshop underscored the growing importance of this technology in coastal management, navigation, habitat monitoring, and disaster response. For more details, see the ICESat-2 Applications Team Hosts Satellite Bathymetry Workshop report.
As satellite technologies continue to evolve, so do the scientific communities that rely on them, bringing researchers together to share insights, refine data products, and explore new applications across a range of Earth and atmospheric science disciplines. As of early 2025, NASA’s Stratospheric Aerosol and Gas Experiment III (SAGE III) aboard the International Space Station (ISS) continues to provide critical insights into Earth’s atmospheric composition. In addition to scientific advancements, SAGE III/ISS has enhanced public accessibility to its data. In February 2025, the mission launched updates to its Quicklook and Expedited data portal, introducing a new ‘Highlights’ tab to showcase major stratospheric events and a ‘Comparisons’ tab for validating measurements with ground-based stations. These enhancements aim to make SAGE III/ISS data more accessible and increase its utilization for atmospheric research.
The most recent SAGE III/ISS Science Team Meeting took place in October 2024 at NASA Langley Research Center and was held in hybrid format. Around 50 scientists gathered to discuss recent advancements, mission updates, and future directions in upper troposphere–stratosphere (UTS) research. The SAGE III/ISS team celebrated eight years of continuous data collection aboard the ISS and presented Version 6.0 of SAGE III/ISS data products during the meeting, which addresses previous data biases and enhances aerosol profile recovery. Presentations also covered aerosol and cloud studies, lunar-based aerosol retrievals, and collaborative projects using data from multiple satellite platforms and instruments. To learn more, see the full Summary of the 2024 SAGE III/ISS Meeting.
Moving on to personnel announcements, I wish to extend my condolences to the friends and family of Dr. Stanley Sander, who passed away in March 2025. Sander devoted over 50 years to atmospheric science at NASA’s Jet Propulsion Laboratory, making groundbreaking contributions to stratospheric ozone research, air pollution, and climate science. His precise laboratory work on reaction kinetics and spectroscopy became foundational for atmospheric modeling and environmental policy, including the Montreal Protocol. Sander also played a key role in satellite calibration, mentored dozens of young scientists, and held several leadership positions at JPL. Remembered for his brilliance, humility, and kindness, his legacy endures through both his scientific achievements and the many lives he influenced. See In Memoriam: Dr. Stanley Sander.
On a happier, though bittersweet, note, my congratulations to Jack Kaye [NASA HQ—Associate Director for Research, Earth Science Division (ESD)] who retired from NASA on April 30, 2025, after 42 years of distinguished service. With a background in chemistry and atmospheric science, he played a leading role in NASA’s efforts to understand Earth’s atmosphere and climate using satellite data and modeling. Throughout his career, Kaye has held various key leadership positions, managed major missions, e.g., the series of Shuttle-based Atmospheric Laboratory of Applications and Science (ATLAS) experiments, and supported the development of early-career scientists. He also represented NASA in national and international science collaborations and advisory roles. Kaye received numerous awards, published extensively, and was widely recognized for his contributions to Earth science and global climate research. I extend my sincere thanks to Jack for his many years of vital leadership and lasting contributions to the global Earth science community!
Barry Lefer [NASA HQ—Tropospheric Composition Program Manager] has taken over as Acting Associate Director for Research in ESD. Reflecting on Kaye’s impact, Lefer said, “Jack has been a wonderful friend and mentor. The one thing about Jack that has had the biggest impact on me (besides his incredible memory) is his kindness. He has an enormous heart. He will be missed, but his impact on Earth Science will endure for a very long time!” See the full announcement, Jack Kaye Retires After a Storied Career at NASA.
Steve Platnick
EOS Senior Project Scientist
Tuning a NASA Instrument: Calibrating MASTER
2 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater) Electrical engineer Nikolas Gibson performs calibration tests on the MODIS/ASTER Airborne Simulator (MASTER) spectrometer, co-developed by NASA’s Ames Research Center and NASA’s Jet Propulsion Laboratory. Gibson works at the Airborne Sensor Facility at Ames, which builds, maintains, miniaturizes, and calibrates instruments.NASA/Milan LoiaconoNASA’s Ames Research Center in Silicon Valley houses a unique laboratory: the Airborne Sensor Facility (ASF). The engineers at the ASF are responsible for building, maintaining, and operating numerous instruments that get deployed on research aircraft, but one of their most important roles is instrument calibration.
Think of calibration like tuning a piano between performances: A musician uses a tuner to set the standard pitch for each string, ensuring that the piano remains on pitch for every concert.
The “tuners” at ASF include lasers, mirrors, and a light source called an integrating sphere – a hollow sphere about 36 inches in diameter that emits a set amount of light from a hole in the top. By checking an instrument against this baseline between each mission, engineers ensure that the instrument sensors provide accurate, reliable data every time.
In the photo above, electrical engineer Nikolas Gibson performs calibration tests on the MODIS/ASTER Airborne Simulator (MASTER) spectrometer, co-developed by NASA Ames and NASA’s Jet Propulsion Laboratory in Southern California.
A spectrometer separates light into individual wavelengths, providing researchers with information about the properties of whatever is creating or interacting with that light. The MASTER instrument measures about 50 individual spectral channels, providing data on wavelengths from the visible spectrum through the infrared.
When it comes to calibration, each of these channels functions like a specific key on a piano and needs to be individually checked against the “tuner.” By pointing the instrument’s sensor at a known quantity of light coming from the integrating sphere, the team checks the accuracy of MASTER’s data output and repairs or adjusts the sensor as needed.
In this image, MASTER had returned from an April 2025 scientific campaign observing prescribed fires in Alabama and Georgia with NASA’s FireSense project. It was recalibrated before heading back into the field for the Geological Earth Mapping Experiment, or GEMx, mission in late May 2025, which will use the instrument to help map critical minerals across the southwestern United States.
About the AuthorMilan LoiaconoScience Communication SpecialistMilan Loiacono is a science communication specialist for the Earth Science Division at NASA Ames Research Center.
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Fewer Feeds, More Focus: NASA’s Social Media Overhaul
In today’s crowded digital landscape, cutting through the noise is paramount for any organization trying to connect with its audience. Recognizing this, NASA has embarked on a significant initiative to streamline its extensive social media presence, aiming to create a more unified and impactful digital voice for its groundbreaking work.
The National Aeronautics and Space Act of 1958 tasked NASA with providing the “widest practicable and appropriate dissemination of information concerning its activities and the results thereof.” The 2025 social media consolidation project is designed to fulfill this mandate more effectively. By reducing the number of agency accounts, NASA seeks to make its work more accessible to the public, avoiding the potential for oversaturation or confusion that can arise from numerous social media accounts bearing the NASA name and insignia.
Over time, NASA’s social media footprint has expanded considerably, growing to over 400 individual accounts across 15 platforms. While this allowed for highly specialized updates, it also created a fragmented digital landscape that was challenging for both the public to navigate and for NASA to manage efficiently.
To ensure a more cohesive and impactful digital presence, the consolidation project involved a thorough evaluation of every existing account. Accounts were assessed based on several key considerations, including their compliance with federal and agency policies, their activity within the last year, their unique value proposition, their level of two-way engagement with the public, and their approach to publishing new, original content versus reposting existing material.
Based on this comprehensive evaluation, accounts will be handled in one of a few ways:
- Deactivate/Sunset: Many accounts that publish content that can be effectively absorbed by broader channels will be sunset. This means they will cease active posting and eventually become inactive or removed from public view by the platform.
- Merge: Content and followers from some specialized accounts will be merged into larger, thematic accounts or NASA’s flagship channels. This ensures valuable information still reaches the intended audience, but through fewer, more prominent feeds.
- Rebrand: A small number of accounts may be rebranded to better align with the new strategic framework, reflecting a broader scope or a more direct connection to core NASA initiatives.
This initiative builds upon the success of previous digital transformation projects within the agency, such as the Science Mission Directorate’s social media consolidation project in 2019 and website modernization in 2023. Both efforts resulted in streamlined processes, modernized content, and more focused communications, and NASA anticipates similar positive outcomes from this current social media consolidation.
Ultimately, this strategic shift underscores a broader trend for NASA’s digital communication strategy: the move toward quality over quantity. For NASA, it’s about making vital information more accessible and digestible, ensuring the agency’s awe-inspiring work resonates deeply with a global audience. The future of space communication promises to be more focused, more powerful, and even more inspiring.
References:
Blog posted by Dr. Z
Statement on NASA’s social media directory
Web, app, and NASA+ transformation
NASA Glenn Pitches Science Demonstrations at Lake Erie Crushers Game
NASA’s Glenn Research Center headed to the ballpark for Education Day with the Lake Erie Crushers on May 15. NASA Glenn staff showcased the science of NASA using portable wind tunnel demonstrations, virtual reality simulations, and other interactives inspired by NASA’s Artemis missions.
NASA Glenn Research Center engineers Heath Reising, far left, and Dave Saunders, far right, provide a wind tunnel demonstration to a group of aspiring STEM professionals during Education Day with the Lake Erie Crushers on Thursday, May 15, 2025.Credit: NASA/Chris HartenstineGuests snapped photos at an “out-of-this-world” selfie station and learned how to take the first step toward a career in the aerospace or space industry through NASA’s internship programs. The mid-day game welcomed 3,575 fans, many who came from local schools on field trips for the special day.
Return to NewsletterNASA Glenn Employees Recognized by Astronaut Corps
Four of NASA Glenn Research Center’s employees have received the coveted NASA Silver Snoopy Award. This award, overseen by NASA’s Space Flight Awareness program, is a special honor given to NASA employees and contractors for their outstanding achievements related to flight safety and mission success. It is the astronauts’ personal award to recognize excellence and is given to less than 1% of the workforce annually.
Deputy Center Director Dawn Schaible, joined by astronaut Randy Bresnik, presented the awards at the center in Cleveland on May 14. Bresnik was part of a crew in 2009 that delivered 30,000 pounds of essential parts and equipment to the International Space Station. He served as the commander of the space station for Expedition 53 and flight engineer for Expedition 52.
The recipients include Rula Coroneos, Joshua Finkbeiner, Tyler Hickman, and Ron Johns. Each of the honorees has played a crucial role in supporting the Artemis campaign, which will explore the Moon and prepare for human missions to Mars. The award recipients have made significant contributions to the success of the Orion spacecraft and its European Service Module and have been dedicated to the safety and success of Artemis I and upcoming Artemis missions.
Return to NewsletterNASA Glenn Joins COSI’s Big Science Celebration
NASA’s Glenn Research Center joined the Center for Science and Industry (COSI) Big Science Celebration on the museum’s front lawn in Columbus, Ohio, on May 4. This event centered on science activities by STEM professionals, researchers, and experts from Central Ohio — and despite chilly, damp weather, it drew more than 20,000 visitors.
At COSI’s Big Science Celebration on Sunday, May 4, 2025, a young visitor steps out of the rain and into NASA Glenn Research Center’s booth to check out the Graphics and Visualization Lab’s augmented reality fluid flow table that allows users to virtually explore a model of the International Space Station. Credit: NASA/Lily HammelNASA’s 10-by-80-foot tent housed a variety of information booths and hands-on demonstrations to introduce guests to the vital research being performed at the Cleveland center. Popular attractions included a mini wind tunnel and multiple augmented and virtual reality demonstrations. Visitors also engaged through tangram puzzles and a cosmic selfie station. NASA Glenn’s astronaut mascot made several appearances to the delight of young and old alike.
Return to NewsletterNASA’s CODEX Captures Unique Views of Sun’s Outer Atmosphere
- NASA’s CODEX investigation captured images of the Sun’s outer atmosphere, the corona, showcasing new aspects of its gusty, uneven flow.
- The CODEX instrument, located on the International Space Station, is a coronagraph — a scientific tool that creates an artificial eclipse with physical disks — that measures the speed and temperature of solar wind using special filters.
- These first-of-their-kind measurements will help scientists improve models of space weather and better understand the Sun’s impact on Earth.
Scientists analyzing data from NASA’s CODEX (Coronal Diagnostic Experiment) investigation have successfully evaluated the instrument’s first images, revealing the speed and temperature of material flowing out from the Sun. These images, shared at a press event Tuesday at the American Astronomical Society meeting in Anchorage, Alaska, illustrate the Sun’s outer atmosphere, or corona, is not a homogenous, steady flow of material, but an area with sputtering gusts of hot plasma. These images will help scientists improve their understanding of how the Sun impacts Earth and our technology in space.
“We really never had the ability to do this kind of science before,” said Jeffrey Newmark, a heliophysicist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, and the principal investigator for CODEX. “The right kind of filters, the right size instrumentation — all the right things fell into place. These are brand new observations that have never been seen before, and we think there’s a lot of really interesting science to be done with it.”
The Sun continuously radiates material in the form of the solar wind. The Sun’s magnetic field shapes this material, sometimes creating flowing, ray-like formations called coronal streamers. In this view from NASA’s CODEX instrument, large dark spots block much of the bright light from the Sun. Blocking this light allows the instrument’s sensitive equipment to capture the faint light of the Sun’s outer atmosphere. NASA/KASI/INAF/CODEXNASA’s CODEX is a solar coronagraph, an instrument often employed to study the Sun’s faint corona, or outer atmosphere, by blocking the bright face of the Sun. The instrument, which is installed on the International Space Station, creates artificial eclipses using a series of circular pieces of material called occulting disks at the end of a long telescope-like tube. The occulting disks are about the size of a tennis ball and are held in place by three metal arms.
Scientists often use coronagraphs to study visible light from the corona, revealing dynamic features, such as solar storms, that shape the weather in space, potentially impacting Earth and beyond.
NASA missions use coronagraphs to study the Sun in various ways, but that doesn’t mean they all see the same thing. Coronagraphs on the joint NASA-ESA Solar and Heliospheric Observatory (SOHO) mission look at visible light from the solar corona with both a wide field of view and a smaller one. The CODEX instrument’s field of view is somewhere in the middle, but looks at blue light to understand temperature and speed variations in the background solar wind.In this composite image of overlapping solar observations, the center and left panels show the field-of-view coverage of the different coronagraphs with overlays and are labeled with observation ranges in solar radii. The third panel shows a zoomed-in, color-coded portion of the larger CODEX image. It highlights the temperature ratios in that portion of the solar corona using CODEX 405.0 and 393.5 nm filters. NASA/ESA/SOHO/KASI/INAF/CODEX
“The CODEX instrument is doing something new,” said Newmark. “Previous coronagraph experiments have measured the density of material in the corona, but CODEX is measuring the temperature and speed of material in the slowly varying solar wind flowing out from the Sun.”
These new measurements allow scientists to better characterize the energy at the source of the solar wind.
The CODEX instrument uses four narrow-band filters — two for temperature and two for speed — to capture solar wind data. “By comparing the brightness of the images in each of these filters, we can tell the temperature and speed of the coronal solar wind,” said Newmark.
Understanding the speed and temperature of the solar wind helps scientists build a more accurate picture of the Sun, which is necessary for modeling and predicting the Sun’s behaviors.
“The CODEX instrument will impact space weather modeling by providing constraints for modelers to use in the future,” said Newmark. “We’re excited for what’s to come.”
by NASA Science Editorial Team
NASA’s Goddard Space Flight Center, Greenbelt, Md
CODEX is a collaboration between NASA Goddard Space Flight Center and the Korea Astronomy and Space Science Institute (KASI) with additional contribution from Italy’s National Institute for Astrophysics (INAF).
Share Details Last Updated Jun 10, 2025 Related TermsHigh Above the World
NASA astronaut Franklin Chang-Diaz works with a grapple fixture during a June 2002 spacewalk outside of the International Space Station. He was partnered with CNES (Centre National d’Etudes Spatiales) astronaut Philippe Perrin for the spacewalk – one of three that occurred during the STS-111 mission. Chang-Diaz was part of NASA’s ninth class of astronaut candidates. He became the first Hispanic American to fly in space.
Image credit: NASA
Frigid Exoplanet in Strange Orbit Imaged by NASA’s Webb
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NASA, ESA, CSA, STScI, W. Balmer (JHU), D. Bardalez Gagliuffi (Amherst College)
A planetary system described as abnormal, chaotic, and strange by researchers has come into clearer view with NASA’s James Webb Space Telescope. Using Webb’s NIRCam (Near-Infrared Camera), researchers have successfully imaged one of two known planets surrounding the star 14 Herculis, located 60 light-years away from Earth in our own Milky Way galaxy.
The exoplanet, 14 Herculis c, is one of the coldest imaged to date. While there are nearly 6,000 exoplanets that have been discovered, only a small number of those have been directly imaged, most of those being very hot (think hundreds or even thousands of degrees Fahrenheit). The new data suggests 14 Herculis c, which weighs about 7 times the planet Jupiter, is as cool as 26 degrees Fahrenheit (minus 3 degrees Celsius).
Image: 14 Herculis c (NIRCam) This image of exoplanet 14 Herculis c was taken by NASA’s James Webb Space Telescope’s NIRCam (Near-Infrared Camera). A star symbol marks the location of the host star 14 Herculis, whose light has been blocked by a coronagraph on NIRCam (shown here as a dark circle outlined in white). NASA, ESA, CSA, STScI, W. Balmer (JHU), D. Bardalez Gagliuffi (Amherst College)The team’s results covering 14 Herculis c have been accepted for publication in The Astrophysical Journal Letters and were presented in a press conference Tuesday at the 246th meeting of the American Astronomical Society in Anchorage, Alaska.
“The colder an exoplanet, the harder it is to image, so this is a totally new regime of study that Webb has unlocked with its extreme sensitivity in the infrared,” said William Balmer, co-first author of the new paper and graduate student at Johns Hopkins University. “We are now able to add to the catalog of not just hot, young exoplanets imaged, but older exoplanets that are far colder than we’ve directly seen before Webb.”
Webb’s image of 14 Herculis c also provides insights into a planetary system unlike most others studied in detail with Webb and other ground- and space-based `observatories. The central star, 14 Herculis, is almost Sun-like – it is similar in age and temperature to our own Sun, but a little less massive and cooler.
There are two planets in this system – 14 Herculis b is closer to the star, and covered by the coronagraphic mask in the Webb image. These planets don’t orbit the host star on the same plane like our solar system. Instead, they cross each other like an ‘X’, with the star being at the center. That is, the orbital planes of the two planets are inclined relative to one another at an angle of about 40 degrees. The planets tug and pull at one another as they orbit the star.
This is the first time an image has ever been snapped of an exoplanet in such a mis-aligned system.
Scientists are working on several theories for just how the planets in this system got so “off track.” One of the leading concepts is that the planets scattered after a third planet was violently ejected from the system early in its formation.
“The early evolution of our own solar system was dominated by the movement and pull of our own gas giants,” added Balmer. “They threw around asteroids and rearranged other planets. Here, we are seeing the aftermath of a more violent planetary crime scene. It reminds us that something similar could have happened to our own solar system, and that the outcomes for small planets like Earth are often dictated by much larger forces.”
Understanding the Planet’s Characteristics With WebbWebb’s new data is giving researchers further insights into not just the temperature of 14 Herculis c, but other details about the planet’s orbit and atmosphere.
Findings indicate the planet orbits around 1.4 billion miles from the host star in a highly elliptical, or football-shaped orbit, closer in than previous estimates. This is around 15 times farther from the Sun than Earth. On average, this would put 14 Herculis c between Saturn and Uranus in our solar system.
The planet’s brightness at 4.4 microns measured using Webb’s coronagraph, combined with the known mass of the planet and age of the system, hints at some complex atmospheric dynamics at play.
“If a planet of a certain mass formed 4 billion years ago, then cooled over time because it doesn’t have a source of energy keeping it warm, we can predict how hot it should be today,” said Daniella C. Bardalez Gagliuffi of Amherst College, co-first author on the paper with Balmer. “Added information, like the perceived brightness in direct imaging, would in theory support this estimate of the planet’s temperature.”
However, what researchers expect isn’t always reflected in the results. With 14 Herculis c, the brightness at this wavelength is fainter than expected for an object of this mass and age. The research team can explain this discrepancy, though. It’s called carbon disequilibrium chemistry, something often seen in brown dwarfs.
“This exoplanet is so cold, the best comparisons we have that are well-studied are the coldest brown dwarfs,” Bardalez Gagliuffi explained. “In those objects, like with 14 Herculis c, we see carbon dioxide and carbon monoxide existing at temperatures where we should see methane. This is explained by churning in the atmosphere. Molecules made at warmer temperatures in the lower atmosphere are brought to the cold, upper atmosphere very quickly.”
Researchers hope Webb’s image of 14 Herculis c is just the beginning of a new phase of investigation into this strange system.
While the small dot of light obtained by Webb contains a plethora of information, future spectroscopic studies of 14 Herculis could better constrain the atmospheric properties of this interesting planet and help researchers understand the dynamics and formation pathways of the system.
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).
To learn more about Webb, visit:
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Media ContactsLaura Betz – laura.e.betz@nasa.gov
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Hannah Braun – hbraun@stsci.edu
Space Telescope Science Institute, Baltimore, Md.
Christine Pulliam – cpulliam@stsci.edu
Space Telescope Science Institute, Baltimore, Md.
Video: Eclipse/Coronagraph Animation
Webb Blog: How Webb’s Coronagraphs Reveal Exoplanets in the Infrared
Read more about Webb’s Impact on Exoplanet Research
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