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NASA’s Hubble, Chandra Spot Rare Type of Black Hole Eating a Star
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NASA, ESA, CXC, Yi-Chi Chang (National Tsing Hua University); Image Processing: Joseph DePasquale (STScI)
NASA’s Hubble Space Telescope and NASA’s Chandra X-ray Observatory have teamed up to identify a new possible example of a rare class of black holes. Called NGC 6099 HLX-1, this bright X-ray source seems to reside in a compact star cluster in a giant elliptical galaxy.
Just a few years after its 1990 launch, Hubble discovered that galaxies throughout the universe can contain supermassive black holes at their centers weighing millions or billions of times the mass of our Sun. In addition, galaxies also contain as many as millions of small black holes weighing less than 100 times the mass of the Sun. These form when massive stars reach the end of their lives.
Far more elusive are intermediate-mass black holes (IMBHs), weighing between a few hundred to a few 100,000 times the mass of our Sun. This not-too-big, not-too-small category of black holes is often invisible to us because IMBHs don’t gobble as much gas and stars as the supermassive ones, which would emit powerful radiation. They have to be caught in the act of foraging in order to be found. When they occasionally devour a hapless bypassing star — in what astronomers call a tidal disruption event— they pour out a gusher of radiation.
The newest probable IMBH, caught snacking in telescope data, is located on the galaxy NGC 6099’s outskirts at approximately 40,000 light-years from the galaxy’s center, as described in a new study in the Astrophysical Journal. The galaxy is located about 450 million light-years away in the constellation Hercules.
A Hubble Space Telescope image of a pair of galaxies: NGC 6099 (lower left) and NGC 6098 (upper right). The purple blob depicts X-ray emission from a compact star cluster. The X-rays are produced by an intermediate-mass black hole tearing apart a star. Science: NASA, ESA, CXC, Yi-Chi Chang (National Tsing Hua University); Image Processing: Joseph DePasquale (STScI)Astronomers first saw an unusual source of X-rays in an image taken by Chandra in 2009. They then followed its evolution with ESA’s XMM-Newton space observatory.
“X-ray sources with such extreme luminosity are rare outside galaxy nuclei and can serve as a key probe for identifying elusive IMBHs. They represent a crucial missing link in black hole evolution between stellar mass and supermassive black holes,” said lead author Yi-Chi Chang of the National Tsing Hua University, Hsinchu, Taiwan.
X-ray emission coming from NGC 6099 HLX-1 has a temperature of 3 million degrees, consistent with a tidal disruption event. Hubble found evidence for a small cluster of stars around the black hole. This cluster would give the black hole a lot to feast on, because the stars are so closely crammed together that they are just a few light-months apart (about 500 billion miles).
The suspected IMBH reached maximum brightness in 2012 and then continued declining to 2023. The optical and X-ray observations over the period do not overlap, so this complicates the interpretation. The black hole may have ripped apart a captured star, creating a plasma disk that displays variability, or it may have formed a disk that flickers as gas plummets toward the black hole.
“If the IMBH is eating a star, how long does it take to swallow the star’s gas? In 2009, HLX-1 was fairly bright. Then in 2012, it was about 100 times brighter. And then it went down again,” said study co-author Roberto Soria of the Italian National Institute for Astrophysics (INAF). “So now we need to wait and see if it’s flaring multiple times, or there was a beginning, there was peak, and now it’s just going to go down all the way until it disappears.”
The IMBH is on the outskirts of the host galaxy, NGC 6099, about 40,000 light-years from the galaxy’s center. There is presumably a supermassive black hole at the galaxy’s core, which is currently quiescent and not devouring a star.
Black Hole Building BlocksThe team emphasizes that doing a survey of IMBHs can reveal how the larger supermassive black holes form in the first place. There are two alternative theories. One is that IMBHs are the seeds for building up even larger black holes by coalescing together, since big galaxies grow by taking in smaller galaxies. The black hole in the middle of a galaxy grows as well during these mergers. Hubble observations uncovered a proportional relationship: the more massive the galaxy, the bigger the black hole. The emerging picture with this new discovery is that galaxies could have “satellite IMBHs” that orbit in a galaxy’s halo but don’t always fall to the center.
Another theory is that the gas clouds in the middle of dark-matter halos in the early universe don’t make stars first, but just collapse directly into a supermassive black hole. NASA’s James Webb Space Telescope’s discovery of very distant black holes being disproportionately more massive relative to their host galaxy tends to support this idea.
However, there could be an observational bias toward the detection of extremely massive black holes in the distant universe, because those of smaller size are too faint to be seen. In reality, there could be more variety out there in how our dynamic universe constructs black holes. Supermassive black holes collapsing inside dark-matter halos might simply grow in a different way from those living in dwarf galaxies where black-hole accretion might be the favored growth mechanism.
“So if we are lucky, we’re going to find more free-floating black holes suddenly becoming X-ray bright because of a tidal disruption event. If we can do a statistical study, this will tell us how many of these IMBHs there are, how often they disrupt a star, how bigger galaxies have grown by assembling smaller galaxies.” said Soria.
The challenge is that Chandra and XMM-Newton only look at a small fraction of the sky, so they don’t often find new tidal disruption events, in which black holes are consuming stars. The Vera C. Rubin Observatory in Chile, an all-sky survey telescope from the U.S. National Science Foundation and the Department of Energy, could detect these events in optical light as far as hundreds of millions of light-years away. Follow-up observations with Hubble and Webb can reveal the star cluster around the black hole.
The Hubble Space Telescope has been operating for more than 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, also supports mission operations at Goddard. The Space Telescope Science Institute in Baltimore, which is operated by the Association of Universities for Research in Astronomy, conducts Hubble science operations for NASA.
Facebook logo @NASAHubble @NASAHubble Instagram logo @NASAHubble Related Images & Videos NGC 6099 (Hubble + Chandra)A Hubble Space Telescope image of a pair of galaxies: NGC 6099 (lower left) and NGC 6098 (upper right). The purple blob depicts X-ray emission from a compact star cluster. The X-rays are produced by an intermediate-mass black hole tearing apart a star.
NGC 6099 (Hubble)
A Hubble Space Telescope image of a pair of galaxies: NGC 6099 (lower left) and NGC 6098 (upper right). The white dot labeled HLX-1 is the visible-light component of the location of a compact star cluster where an intermediate-mass black hole is tearing apart a star.
NGC 6099 Compass Image
This compass image shows two elliptical galaxies, NGC 6098 at upper right and NGC 6099 at lower left. The fuzzy purple blob at bottom center shows X-ray emission produced by an intermediate-mass black hole tearing apart a star.
HLX-1 Illustration
This sequence of artistic illustrations, from upper left to bottom right, shows how a black hole in the core of a star cluster captures a bypassing star and gravitationally shreds it until there is an explosion, seen in the outskirts of the host galaxy.
HLX-1 Animation
This video is an illustration of an intermediate-mass black hole capturing and gravitationally shredding a star. It begins by zooming into a pair of galaxies. The galaxy at lower left, NGC 6099, contain a dense star cluster at center. The video then zooms into the heart of the cl…
Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov
Ray Villard
Space Telescope Science Institute
Baltimore, Maryland
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NASA Launches Mission to Study Earth’s Magnetic Shield
NASA’s newest mission, TRACERS, soon will begin studying how Earth’s magnetic shield protects our planet from the effects of space weather. Short for Tandem Reconnection and Cusp Electrodynamics Reconnaissance Satellites, the twin TRACERS spacecraft lifted off at 11:13 a.m. PDT (2:13 p.m. EDT) Wednesday aboard a SpaceX Falcon 9 rocket from Space Launch Complex 4 East at Vandenberg Space Force Base in California.
“NASA is proud to launch TRACERS to demonstrate and expand American preeminence in space science research and technology,” said acting NASA Administrator Sean Duffy. “The TRACERS satellites will move us forward in decoding space weather and further our understanding of the connection between Earth and the Sun. This mission will yield breakthroughs that will advance our pursuit of the Moon, and subsequently, Mars.”
The twin satellites will fly one behind the other — following as closely as 10 seconds apart over the same location — and will take a record-breaking 3,000 measurements in one year to build a step-by-step picture of how magnetic reconnection changes over time.
Riding along with TRACERS aboard the Falcon 9 were NASA’s Athena EPIC (Economical Payload Integration Cost), PExT (Polylingual Experimental Terminal), and REAL (Relativistic Electron Atmospheric Loss) missions — three small satellites to demonstrate new technologies and gather scientific data. These three missions were successfully deployed, and mission controllers will work to contact them over the coming hours and days.
Ground controllers for the TRACERS mission established communications with the second of the two spacecraft at 3:43 p.m. PDT (6:43 p.m. EDT), about 3 hours after it separated from the rocket. During the next four weeks, TRACERS will undergo a commissioning period during which mission controllers will check out their instruments and systems.
Once cleared, the twin satellites will begin their 12-month prime mission to study a process called magnetic reconnection, answering key questions about how it shapes the impacts of the Sun and space weather on our daily lives.
“NASA’s heliophysics fleet helps to safeguard humanity’s home in space and understand the influence of our closest star, the Sun,” said Joe Westlake, heliophysics division director at NASA Headquarters in Washington. “By adding TRACERS to that fleet, we will gain a better understanding of those impacts right here at Earth.”
The two TRACERS spacecraft will orbit through an open region in Earth’s magnetic field near the North Pole, called the polar cusp. Here, TRACERS will investigate explosive magnetic events that happen when the Sun’s magnetic field — carried through space in a stream of solar material called the solar wind — collides with Earth’s magnetic field. This collision creates a buildup of energy that causes magnetic reconnection, when magnetic field lines snap and explosively realign, flinging away nearby particles at high speeds.
Flying through the polar cusp allows the TRACERS satellites to study the results of these magnetic explosions, measuring charged particles that race down into Earth’s atmosphere and collide with atmospheric gases — giving scientist the tools to reconstruct exactly how changes in the incoming solar wind affect how, and how quickly, energy and particles are coupled into near-Earth space.
“The successful launch of TRACERS is a tribute to many years of work by an excellent team,” said David Miles, TRACERS principal investigator at the University of Iowa. “TRACERS is set to transform our understanding of Earth’s magnetosphere. We’re excited to explore the dynamic processes driving space weather.”
Small Satellites Along for Ride
Athena EPIC is a pathfinder mission that will demonstrate NASA’s use of an innovative and configurable commercial SmallSat architecture to improve flexibility of payload designs, reduce launch schedule, and reduce overall costs in future missions, as well as the benefits of working collaboratively with federal partners. In addition to this demonstration for NASA, once the Athena EPIC satellite completes its two-week commissioning period, the mission will spend the next 12 months taking measurements of outgoing longwave radiation from Earth.
The PExT demonstration will test interoperability between commercial and government communication networks for the first time by demonstrating a wideband polylingual terminal in low Earth orbit. This terminal will use software-defined radios to jump between government and commercial networks, similar to cell phones roaming between providers on Earth. These terminals could allow future missions to switch seamlessly between networks and access new commercial services throughout its lifecycle in space.
The REAL mission is a CubeSat that will investigate how energetic electrons are scattered out of the Van Allen radiation belts and into Earth’s atmosphere. Shaped like concentric rings high above Earth’s equator, the Van Allen belts are composed of a mix of high-energy electrons and protons that are trapped in place by Earth’s magnetic field. Studying electrons and their interactions, REAL aims to improve our understanding of these energetic particles that can damage spacecraft and imperil astronauts who pass through them.
The TRACERS mission is led by David Miles at the University of Iowa with support from the Southwest Research Institute in San Antonio, Texas. NASA’s Heliophysics Explorers Program Office at the agency’s Goddard Space Flight Center in Greenbelt, Maryland, manages the mission for the Heliophysics Division at NASA Headquarters in Washington. The University of Iowa, Southwest Research Institute, University of California, Los Angeles, and the University of California, Berkeley, all lead instruments on TRACERS.
The Athena EPIC mission is led by NASA’s Langley Research Center in Hampton, Virginia, and is a partnership between National Oceanic and Atmospheric Administration, U.S. Space Force, and NovaWurks. Athena EPIC’s launch is supported by launch integrator SEOPS. The PExT demonstration is managed by NASA’s SCaN (Space Communications and Navigation) program in partnership with Johns Hopkins Applied Physics Laboratory, with launch support by York Space Systems. The REAL project is led by Dartmouth College in Hanover, New Hampshire, and is a partnership between Johns Hopkins Applied Physics Laboratory, Montana State University, and Boston University. Sponsored by NASA’s Heliophysics Division and CubeSat Launch Initiative, it was included through launch integrator Maverick Space Systems.
NASA’s Launch Services Program, based at the agency’s Kennedy Space Center in Florida, manages the VADR (Venture-class Acquisition of Dedicated and Rideshare) contract.
To learn more about TRACERS, visit:
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Abbey Interrante / Karen Fox
Headquarters, Washington
301-201-0124 / 202-358-1600
abbey.a.interrante@nasa.gov / karen.c.fox@nasa.gov
Sarah Frazier
Goddard Space Flight Center, Greenbelt, Maryland
202-853-7191
sarah.frazier@nasa.gov
NASA Sets Launch Coverage for Earth-Tracking NISAR Satellite
NASA will provide live coverage of launch activities for NISAR (NASA-ISRO Synthetic Aperture Radar), which is set to lift off at 8:10 a.m. EDT (5:40 p.m. IST), Wednesday, July 30, from Satish Dhawan Space Centre on India’s southeastern coast.
A collaboration between NASA and the Indian Space Research Organisation (ISRO), the first-of-its-kind satellite will lift off aboard an ISRO Geosynchronous Satellite Launch Vehicle on a mission to scan nearly all the Earth’s land and ice surfaces twice every 12 days.
Watch live coverage of the launch on NASA+ and the agency’s YouTube channel. Learn how to watch NASA content through a variety of platforms, including social media.
With its two radar instruments — an S-band system provided by ISRO and an L-band system provided by NASA — the NISAR mission will provide high-resolution data to help decision-makers, communities, and scientists monitor major infrastructure, agricultural fields, and movement of land and ice surfaces.
Hailed as a critical part of a pioneering year for United States – India civil space cooperation by President Trump and Prime Minister Modi during their visit in Washington in February, the NISAR launch will advance U.S. – India cooperation and benefit the U.S. in areas such as agriculture and preparation and response to disasters like hurricanes, floods, and volcanic eruptions.
NASA’s mission coverage is as follows (all times Eastern and subject to change based on real-time operations):
Monday, July 28
12 p.m. – Prelaunch teleconference with the following participants:
- Karen St. Germain, director of Earth science, NASA Headquarters
- Gerald Bawden, NISAR program scientist, NASA Headquarters
- Shanna McClain, Disasters program manager, NASA Headquarters
- Phil Barela, NISAR project manager, NASA Jet Propulsion Laboratory (JPL)
- Marco Lavalle, NISAR deputy project scientist, NASA JPL
The teleconference will stream on JPL’s YouTube Channel.
Members of the media may ask questions via phone during the teleconference. To register, media must provide their name and affiliation by 4 p.m. on Sunday, July 27, to Rexana Vizza at: rexana.v.vizza@jpl.nasa.gov. Questions may also be asked via social media with the hashtag #AskNISAR.
Wednesday, July 30
7 a.m. – Launch coverage begins on NASA+ and YouTube.
The launch broadcast begins from NASA’s Jet Propulsion Laboratory in Southern California, where the U.S. portion of the mission is managed.
Follow launch events on NASA’s NISAR blog.
Watch, Engage on Social Media
You can also stay connected by following and tagging these accounts:
X: @NASA, @NASAEarth, @NASAJPL
Facebook: NASA, NASA Earth, NASA JPL
Instagram: @NASA, @NASAEarth, @NASAJPL
Additional Resources
The NISAR press kit features deeper dives into the mission as well as its science and technology.
Explore NISAR videos as well as NISAR animations and b-roll media reel.
The NISAR mission is the first joint satellite mission between NASA and ISRO, marking a new chapter in the growing collaboration between the two space agencies. The launch of NISAR, years in the making, builds on a strong heritage of successful programs, including Chandrayaan-1 and the recent Axiom Mission-4, which saw ISRO and NASA astronauts living and working together aboard the International Space Station for the first time.
Learn more about the mission at:
https://science.nasa.gov/mission/nisar
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Elizabeth Vlock / Karen Fox
Headquarters, Washington
202-358-1600
elizabeth.a.vlock@nasa.gov / karen.c.fox@nasa.gov
Andrew Wang / Jane J. Lee
Jet Propulsion Laboratory, Pasadena, Calif.
626-379-6874 / 818-354-0307
andrew.wang@jpl.nasa.gov / jane.j.lee@jpl.nasa.gov
NASA Scientist Finds Predicted Companion Star to Betelgeuse
4 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater) An image of Betelgeuse, the yellow-red star, and the signature of its close companion, the faint blue object.Data: NASA/JPL/NOIRlab. Visualization: NOIRLAB.A century-old hypothesis that Betelgeuse, the 10th brightest star in our night sky, is orbited by a very close companion star was proved true by a team of astrophysicists led by a scientist at NASA’s Ames Research Center in California’s Silicon Valley.
The research published in The Astrophysical Journal Letters in the paper “Probable Direct Imaging Discovery of the Stellar Companion to Betelgeuse.”
Fluctuations in the brightness and measured velocity of Betelgeuse, the closest red supergiant star to Earth, had long presented clues that it may have a partner, but the bigger star’s intense glow made direct observations of any fainter neighbors nearly impossible.
Two recent studies by other teams of astronomers reignited the companion star hypothesis by using more than 100 years of Betelgeuse observations to provide predictions of the companion’s location and brightness.
If the smaller star did exist, the location predictions suggested that scientists had a window of just a few months to observe the companion star at its widest separation from Betelgeuse, as it orbited near the visible edge of the supergiant. After that, they would have to wait another three years for it to orbit to the other side and again leave the overpowering glow of its larger companion.
Searches for the companion were initially made using space-based telescopes, because observing through Earth’s atmosphere can blur images of astronomical objects. But these efforts did not detect the companion.
Steve Howell, a senior research scientist at Ames, recognized the ground-based Gemini North telescope in Hawai’i, one of the largest in the world, paired with a special, high-resolution camera built by NASA, had the potential to directly observe the close companion to Betelgeuse, despite the atmospheric blurring.
Officially called the ‘Alopeke speckle instrument, the advanced imaging camera let them obtain many thousands of short exposures to measure the atmospheric interference in their data and remove it with detailed image processing, providing an image of Betelgeuse and its companion.
Howell’s team detected the very faint companion star right where it was predicted to be, orbiting very close to the outer edge of Betelgeuse.
“I hope our discovery excites other astrophysicists about the robust power of ground-based telescopes and speckle imagers – a key to opening new observational windows,” said Howell. “This can help unlock the great mysteries in our universe.”
To start, this discovery of a close companion to Betelgeuse may explain why other similar red supergiant stars undergo periodic changes in their brightness on the scale of many years.
Howell plans to continue observations of Betelgeuse’s stellar companion to better understand its nature. The companion star will again return to its greatest separation from Betelgeuse in November 2027, a time when it will be easiest to detect.
Having found the long-anticipated companion star, Howell turned to giving it a name. The traditional star name “Betelgeuse” derives from Arabic, meaning “the hand of al-Jawza’,” a female figure in old Arabian legend. Fittingly, Howell’s team named the orbiting companion “Siwarha,” meaning “her bracelet.”
Photo of the constellation Orion, showing the location of Betelgeuse – and its newfound companion star.NOIRLab/Eckhard SlawikThe NASA–National Science Foundation Exoplanet Observational Research Program (NN-EXPLORE) is a joint initiative to advance U.S. exoplanet science by providing the community with access to cutting-edge, ground-based observational facilities. Managed by NASA’s Exoplanet Exploration Program, NN-EXPLORE supports and enhances the scientific return of space missions such as Kepler, TESS (Transiting Exoplanet Survey Satellite), Hubble Space Telescope, and James Webb Space Telescope by enabling essential follow-up observations from the ground—creating strong synergies between space-based discoveries and ground-based characterization. NASA’s Exoplanet Exploration Program is located at the agency’s Jet Propulsion Laboratory.
To learn more about NN-EXPLORE, visit:
https://exoplanets.nasa.gov/exep/NNExplore/overview
Share Details Last Updated Jul 23, 2025 Related Terms Explore More 5 min read How NASA Is Testing AI to Make Earth-Observing Satellites Smarter Article 9 hours ago 6 min read NASA’s Hubble, Chandra Spot Rare Type of Black Hole Eating a StarNASA’s Hubble Space Telescope and NASA’s Chandra X-ray Observatory have teamed up to identify a…
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NASA Tests 5G-Based Aviation Network to Boost Air Taxi Connectivity
4 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater) NASA researcher Darren Nash monitors experimental communications equipment on NASA’s Pilatus PC-12 during a flight test over NASA’s Glenn Research Center in Cleveland on April 17, 2025.NASA/Sara Lowthian-HannaNASA engineers are exploring how the technology used in existing cellphone networks could support the next generation of aviation.
In April and May, researchers at NASA’s Glenn Research Center in Cleveland built two specialized radio systems to study how well fifth-generation cellular network technology, known as 5G, can handle the demands of air taxi communications.
“The goal of this research is to understand how wireless cellphone networks could be leveraged by the aviation industry to enable new frontiers of aviation operations,” said Casey Bakula, lead researcher for the project, who is based at Glenn. “The findings of this work could serve as a blueprint for future aviation communication network providers, like satellite navigation providers and telecommunications companies, and help guide the Federal Aviation Administration’s plan for future advanced air mobility network requirements in cities.”
Instead of developing entirely new standards for air taxi communications, NASA is looking to see if the aviation industry could leverage the expertise, experience, and investments made by the cellular industry toward the development of reliable, secure, and scalable aviation networks. If 5G networks could provide an “80% solution” to the challenge, researchers can focus on identifying the remaining 20% that would need to be adapted to meet the needs of the air taxi industry.
NASA researchers Darren Nash, left, and Brian Kachmar review signal data captured from experimental communications equipment onboard NASA’s Pilatus PC-12 on April 17, 2025.NASA/Sara Lowthian-Hanna5G networks can manage a lot of data at once and have very low signal transmission delay compared to satellite systems, which could make them ideal for providing location data between aircraft in busy city skies. Ground antennas and networks in cities can help air taxis stay connected as they fly over buildings, making urban flights safer.
To conduct their tests, NASA researchers set up a system that meets current 5G standards and would allow for future improvements in performance. They placed one radio in the agency’s Pilatus PC-12 aircraft and set up another radio on the roof of Glenn’s Aerospace Communications Facility building. With an experimental license from the Federal Aviation Administration (FAA) to conduct flights, the team tested signal transmissions using a radio frequency band the Federal Communications Commission dedicated for the safe testing of drones and other uncrewed aircraft systems.
During testing, NASA’s PC-12 flew various flight patterns near Glenn. The team used some of the flight patterns to measure how the signal could weaken as the aircraft moved away from the ground station. Other patterns focused on identifying areas where nearby buildings might block signals, potentially causing interference or dead zones. The team also studied how the aircraft’s angle and position relative to the ground station affected the quality of the connection.
These initial tests provided the NASA team an opportunity to integrate its new C-Band radio testbed onto the aircraft, verify its basic functionality, and the operation of the corresponding ground station, as well as refine the team’s test procedures. The successful completion of these activities allows the team to begin research on how 5G standards and technologies could be utilized in existing aviation bands to provide air-to-ground and aircraft-to-aircraft communications services.
Experimental communications equipment is secure and ready for flight test evaluation in the back of NASA’s Pilatus PC-12 at NASA’s Glenn Research Center in Cleveland on April 17, 2025. NASA/Sara Lowthian-HannaIn addition to meeting these initial test objectives, the team also recorded and verified the presence of propeller modulation. This is a form of signal degradation caused by the propeller blades of the aircraft partially blocking radio signals as they rotate. The effect becomes more significant as aircraft fly at the lower altitudes air taxis are expected to operate. The airframe configuration and number of propellers on some of the new air taxi models may cause increased propeller modulation effects, so the team identified this as a topic for future research.
NASA research will provide baseline performance data that the agency will share with the FAA and the advanced air mobility sector of the aviation industry, which explores new air transportation options. Future research from industry could focus on issues such as maximum data speeds, signal-to-noise ratios, and synchronization between aircraft and ground systems. Researchers will be able to use NASA’s baseline data to measure the potential of new changes or features to communications systems.
Future aircraft will need to carry essential communications systems for command and control, passenger safety, and coordination with other aircraft to avoid collisions. Reliable wireless networks offer the possibility for safe operations of air taxis, particular in cities and other crowded areas.
This work is led by NASAs Air Mobility Pathfinders project under the Airspace Operations and Safety Program in support of NASA’s Advanced Air Mobility mission.
NASA Pilot Mark Russell emerges from NASA’s Pilatus PC-12 after mobile communication tests at NASA’s Glenn Research Center in Cleveland on April 17, 2025. NASA/Sara Lowthian-Hanna Share Details Last Updated Jul 24, 2025 EditorDede DiniusContactLaura Mitchelllaura.a.mitchell@nasa.govLocationArmstrong Flight Research Center Related Terms Explore More 4 min read NASA Scientist Finds Predicted Companion Star to Betelgeuse Article 1 day ago 3 min read NASA Tests Mixed Reality Pilot Simulation in Vertical Motion Simulator Article 1 day ago 4 min read GRUVE LabThe GRUVE (Glenn Reconfigurable User-Interface and Virtual Reality Exploration) Lab is located within the GVIS…
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NASA Tests Mixed Reality Pilot Simulation in Vertical Motion Simulator
Commercial companies and government agencies are increasingly pursuing a more immersive and affordable alternative to conventional displays currently used in flight simulators. A NASA research project is working on ways to make this technology available for use faster.
Mixed reality systems where users interact with physical simulators while wearing virtual reality headsets offer a promising path forward for pilot training. But currently, only limited standards exist for allowing their use, as regulators have little to no data on how these systems perform. To address this, NASA’s Ames Research Center in California’s Silicon Valley invited a dozen pilots to participate in a study to test how a mixed-reality flight simulation would perform in the world’s largest flight simulator.
“For the first time, we’re collecting real data on how this type of mixed reality simulation performs in the highest-fidelity vertical motion simulator,” said Peter Zaal, a principal systems architect at Ames. “The more we understand about how these systems affect pilot performance, the closer we are to providing a safer, cost-effective training tool to the aviation community that could benefit everyone from commercial airlines to future air taxi operators.”
A National Test Pilot student observes the mixed-reality pilot simulation in the VMS at Ames on May 30, 2025.NASA/Brandon Torres-NavarreteMixed reality blends physical and digital worlds, allowing users to see physical items while viewing a desired simulated environment. Flight simulators employing this technology through headset or a similar setup could offer pilots training for operating next-generation aircraft at a reduced cost and within a smaller footprint compared to more traditional flight simulators. This is because pilots could rely more heavily on the visuals provided through the headset instead of large embedded visual displays in a physical motion simulator.
During the testing – which ran May 23-30 – pilots donned a headset through which they could see the physical displays and control sticks inside the Vertical Motion Simulator (VMS) cab along with a virtual cockpit overlay of an electric vertical take-off and landing vehicle through the head-mounted display. When the pilots looked toward their windscreens, they saw a virtual view of San Francisco and the surrounding area.
Pilots performed three typical flight maneuvers under four sets of motion conditions. Afterward, they were asked to provide feedback on their level of motion sickness while using the head-mounted display and how well the simulator replicated the same movements the aircraft would make during a real flight.
An initial analysis of the study shows pilots reported lower ratings of motion sickness than NASA researchers expected. Many shared that the mixed-reality setup inside the VMS felt more realistic and fluid than previous simulator setups they had tested.
As part of the test, Ames hosted members of the Federal Aviation Administration Civil Aerospace Medical Institute, which studies factors that influence human performance in aerospace. Pilots from the National Test Pilot School attended a portion of the testing and, independent from the study, evaluated the head-mounted display’s “usable cue environment,” or representation of the visual cues pilots rely on to control an aircraft.
Peter Zaal (right), observes as Samuel Ortho (middle) speaks with a National Test Pilot student during the mixed reality pilot simulation in the Vertical Motion Simulator at Ames on May 30, 2025.NASA will make the test results available to the public and the aviation community early next year. This first-of-its-kind testing – funded by an Ames Innovation Fair Grant and managed by the center’s Aviation Systems Division – paves the way for potential use of this technology in the VMS for future aviation and space missions.
NASA Astronaut Jonny Kim, Axiom Mission 4 Commander Peggy Whitson Conduct Research in Space
In this photo from June 28, 2025, Expedition 73 flight engineer Jonny Kim and former NASA astronaut and director of human spaceflight at Axiom Space Peggy Whitson work together inside the International Space Station’s Destiny laboratory module setting up hardware for cancer research.
The hardware is used to culture patient-derived cancer cells, model their growth in microgravity, and test a state-of-the-art fluorescence microscope. Results of this study may lead to earlier cancer detection methods, development of advanced cancer treatments, and promote future stem cell research in space.
Whitson returned to Earth on July 15, 2025, with fellow Axiom Mission 4 crew members ISRO (Indian Space Research Organisation) astronaut Shubhanshu Shukla, ESA (European Space Agency) project astronaut Sławosz Uznański-Wiśniewski of Poland, and Hungarian to Orbit (HUNOR) astronaut Tibor Kapu of Hungary. They completed about two and a half weeks in space.
Image credit: JAXA (Japan Aerospace Exploration Agency)/Takuya Onishi
Radio JOVE Volunteers Tune In to the Sun’s Low Notes
As the Sun approaches the most active part of its eleven-year magnetic cycle this summer, NASA volunteers have been watching it closely. Now they’ve spotted a new trend in solar behavior that will have you reaching for your suntan lotion. It’s all about something called a “Type II” solar radio burst:
“Type II solar radio bursts are not commonly detected in the frequency range between 15 to 30 megahertz,” said Prof. Chuck Higgins, Co-founder of Radio JOVE. “Recently, we’re seeing many of them in that range.”
Let’s unpack that. Our Sun often sprays powerful blasts of radio waves into space. Heliophysicists classify these radio bursts into five different types depending on how the frequency of the radio waves drifts over time. “Type II” solar radio bursts seem to come from solar flares and enormous squirts of hot plasma called coronal mass ejections.
Now, Thomas Freeman, an undergraduate student at Middle Tennessee State University, and other volunteers working on NASA’s Radio JOVE project have observed something interesting about these Type II bursts: they are now showing up at lower frequencies—somewhere in between FM and AM radio.
What does it mean? It means our star is full of surprises! These Radio JOVE observations of the Sun’s radio emissions during solar maximum can be used to extend our knowledge of solar emissions to lower frequencies and, therefore, to distances farther from the Sun.
Radio JOVE is a NASA partner citizen science project in which participants assemble and operate radio astronomy telescopes to gather and contribute data to support scientific studies. Radio JOVE collaborated with SunRISE Ground Radio Lab, organized teams of high school students to observe the Sun, and recently published a paper on these Type II solar radio bursts. Learn more and get involved!
A Type II solar radio burst on April 23rd, 2024, seen as the gently sloping yellow band drifting from 17:49 to 18:02 UTC in the 15-30 MHz radio frequency-time spectrogram. Credit: Tom Ashcraft, Lamy, NM Share Details Last Updated Jul 23, 2025 Related Terms Explore More 2 min read Bring NASA Science into Your Library!Article
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NASA Seeks Industry Concepts on Moon, Mars Communications
NASA is seeking proposals from U.S. companies about innovative Moon and Mars proximity relay communication and navigation capabilities as the agency aims to use private industry satellite communications services for emerging missions.
On July 7, NASA issued a Request for Proposals, soliciting advanced industry concepts to establish high-bandwidth, high-reliability communications infrastructure between the lunar surface and an Earth-based operations control center, along with concepts that establish a critical communications relay on the Martian surface and transfer data between Mars and the Earth.
“These partnerships foster important advancements in communications and navigation,” said Greg Heckler, deputy program manager for capability development within NASA’s SCaN (Space Communications and Navigation) Program. “It allows our astronauts, our rovers, our spacecraft – all NASA missions – to expand humanity’s exploration of the Moon, Mars, and beyond.”
NASA’s request directly supports the agency’s long-term vision of an interoperable space communication and navigation infrastructure that enables science, exploration, and economic development in space. NASA, as one of many customers, will establish a marketplace that supports cost-effective commercial services involving communication needs on and around the Moon and Mars.
Responses are due by 5 p.m. EDT, Wednesday, Aug. 13.
NASA’s SCaN Program serves as the management office for the agency’s space communications and navigation. More than 100 NASA and non-NASA missions rely on SCaN’s two networks, the Near Space Network and the Deep Space Network, to support astronauts aboard the International Space Station and future Artemis missions, monitor Earth’s weather, support lunar exploration, and uncover the solar system and beyond.
Learn more about NASA’s SCaN Program at:
News Media Contact:
Claire O’Shea
Headquarters, Washington
202-358-1100
claire.a.o’shea@nasa.gov
GRUVE Lab
The GRUVE (Glenn Reconfigurable User-Interface and Virtual Reality Exploration) Lab is located within the GVIS Lab. It is home to the CAVE, which is predominantly used for mission scenarios and to tour virtual environments of NASA facilities.
GRUVE Lab VisualizationUsers virtually explore a facility at NASA’s Glenn Research Center in Cleveland.NASA GRUVE Lab DemonstrationA user analyzes a visualization of a prototype structure.NASA GRUVE Lab VisualizationA user analyzes a visualization of a prototype structure that will be used for a fire experiment on the Moon.NASA GRUVE Lab VisualizationA Graphics and Visualization Lab (GVIS) intern in the Cave Automatic Virtual Environment (CAVE).NASA GRUVE Lab TourA user takes a virtual tour of a facility at NASA’s Glenn Research Center in Cleveland.NASA How GRUVE WorksGRUVE allows multiple people to view a visualization in 3D together. These visualizations include 3D models of NASA facilities and intricate images created from collected data.
Powerful projectors and mirrors, in combination with an infrared motion tracking system and active-shutter glasses, allow viewers to view 3D models and data in perfect perspective. 3D models effectively pop off the screen and remain proportional no matter where the user with the pair of tracking glasses moves in the environment.
The CAVE can be driven by either a Windows or Linux computer system, enabling the team to use the best environment for a given problem and software tool.
The CAVE setup immerses the user in 3D visualizations through walls on all sides, projectors from above, tracking cameras, and mirrors hidden behind the facade.Visbox, Inc. Benefits of GRUVEThe CAVE’s technology provides a unique advantage for researchers, scientists, engineers, and others. Seeing and analyzing forces and data that would otherwise not be viewable to the human eye allows the observer to understand their subject matter in more detail.
Benefits of GRUVE to research include:
- Providing an immersive environment: with large screens to fill peripheral vision and stereoscopic projection for a real sense of three-dimensional space, more parts of the brain are engaged, and the user is better able to understand problems and solve them faster
- More effective collaboration: the ability to see each other in the virtual reality environment makes GRUVE better for collaboration than traditional VR technology
- Seeing complex data and flows in 3D: this makes it easier for both experts and non-experts to understand the data
- Providing greater resolution and larger display size: this allows details to be displayed without losing their context
- Delivering faster and more accurate manipulation and viewing of models, including CAD data, with fewer errors: this results in a faster time to market and less re-work
All members of NASA Glenn may use GRUVE for their projects.
Applications of Immersive 3D Environments- Fluid dynamics analysis (CFD)
- Point cloud data, e.g., LiDAR
- Virtual design reviews
- Virtual manufacturing testing
- Computer Aided Design (CAD)
- 3D imaging data
- Training and education
- Virtual procedures
- Biomedical research
- Molecular dynamics
- Virtual building walkthroughs
- Showroom “theater”
- Education and outreach
- Building Information Management (BIM)
- Big data and data mining
- Cybersecurity data analysis
- Safety systems analysis
- Microfocus CT scan data
- Electron microscopy
- 3D photos and videos
- Point cloud data
- Volume data
- Computational fluid dynamics (CFD)
- Computer Aided Design (CAD)
- Molecular dynamics
- Linux CAVE node
- Windows 10 CAVE node
- CAVE wall
- Stereo glasses
- Audio system
- Tracking system
- Wand
- The Windows node attached to the GRUVE Lab runs middleware software, which enables Unity-developed applications to run in the CAVE. This greatly expands the number of VR applications that can be run.
- Vrui VR Toolkit-based applications such as LiDAR viewer and 3D visualizer
- VMD – Visual Molecular Dynamics
- ParaView
- COVISE– Collaborative Visualization and Simulation Environment
The GVIS Lab maintains a large collection of computing, visualization, and user interaction devices including:
- Virtual reality display devices
- Head-mounted displays
- Room-scale CAVE
- Augmented reality head-mounted displays
- 3D displays
- Psuedo-3D displays
- Pepper’s Ghost display
- Persistence of Vision (POV) LED display
- Light field technology- based displays
- Projection devices for projected AR
- Natural user interface devices
- Hand gesture recognition devices
- Motion capture devices
- Cameras for mixed reality
- Computing hardware
- High-end laptops
- High-end desktops
- High-end tablets and smartphones
- Cameras
- Stereo 3D camera
- 180/360 camera
- Flight simulators
- 3D printers
All these devices are available for employees to try and test for possible application to their work.
A Graphics and Visualization Lab (GVIS) intern in the Cave Automatic Virtual Environment (CAVE).NASA Contact UsNeed to reach us? You can send an email directly to the GVIS Team (GRC-DL-GVIS@mail.nasa.gov) or to the team leader, Herb Schilling (hschilling@nasa.gov).
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GVIS History
In 1982, a $20 million supercomputer was brought to NASA Glenn. Scientists at NASA Glenn were becoming increasingly reliant on computer simulations to test their experiments. Advancements in computer technology allowed a different type of testing environment — one that revolved around virtual models and data over physical observation. The benefits of this method included a decrease in costs, a decrease in associated risk, faster turnaround, and more data.
High Definition Video System (HDVS)A High Definition Video System (HDVS) in the early Graphics and Visualization Lab (GVIS). NASA High Definition Video System (HDVS) in the LabNASA employee in early Graphics and Visualization Lab (GVIS) setup, containing High Definition Video Systems (HDVS). NASA Early Graphics and Visualization Lab (GVIS)Early Graphics and Visualization Lab (GVIS) setup, which housed original analog processing hardware. NASA Cray 1-S/2200 SupercomputerThe original Cray 1-S/2200 Supercomputer in the Research and Analysis Center in 1982.NASABut this method of experimentation created a problem: With data-point counts somewhere in the millions, it was a challenge for scientists to even begin to look at their own collected data. In short, there was simply too much data to be analyzed. To solve this problem, NASA Glenn built the Interactive Computer Aided Research Engineering system (ICARE) in the center’s Research Analysis Center.
Taking up several rooms, consisting of 22 total workstations, and costing a grand total of $20 million, the ICARE system was a way for scientists to examine their data through the aid of supercomputer visualizations. Using both graphical and modular methods, ICARE’s visualizations revealed and shared information in ways that traditional methods could not match.
The construction and implementation of the ICARE system was revolutionary to both the center and NASA as a whole. Before 1982, NASA already had an established interest in powerful computers; however, the ICARE system took NASA into the era of supercomputing. ICARE also brought increased attention to the value and power of scientific visualization.
Original Processing HardwareOriginal analog Graphics and Visualization Lab (GVIS) processing hardware.NASA ICARE RoomAn ICARE room in the Research and Analysis Center. NASA 1980s VisualizationA typical 1980s visualization at NASA’s Glenn Research Center in Cleveland.NASA GRAPH3DGRAPH3D was an innovative technology in the 1980s that supported shaded surfaces and had a rich set of user-friendly commands.NASA The Creation of GVISIn 1989, it was time for an upgrade. NASA Glenn wanted the latest scientific visualization technology and techniques for its scientists, so the center expanded the Research Analysis Center to make room for the new Graphics and Visualization Lab (GVIS). The GVIS Lab acquired cutting-edge graphics technology, including studio-quality TV animation and recording equipment, stereographic displays, and image processing systems. Later, the High-Performance Computing Act of 1991 provided funding and opportunities to add high-speed computing, virtual reality, and collaborative visualization to its fleet of tools.
The secure supercomputing space that would eventually become the Graphics and Visualization Lab (GVIS), shown in 1989.NASADuring this period, the GVIS Lab was responsible for assisting NASA Glenn scientists who needed help visualizing their data. The lab was also tasked with inventing new visualization techniques and promoting NASA Glenn’s activities though tours, videos, and other outreach programs. Some of the techniques the lab developed included particle tracking, iso-surface contours, and volume visualization. Tour guests included school children, corporate VIPs, local and national politicians, TV news media, and researchers from other national labs. Using state-of-the-art recording and editing hardware, the GVIS Lab regularly shared work both inside and outside of NASA.
As other labs and researchers began to gain access to their own scientific visualization tools, the GVIS Lab shifted its focus to experimenting with virtual reality- and augmented reality-based visualizations.
Jay HorowitzJay Horowitz saw the Graphics and Visualization Lab (GVIS) through its creation and early years at NASA’s Glenn Research Center in Cleveland. NASA Cray X-MP-2 SupercomputerThe Cray X-MP-2 Supercomputer that replaced the 1-S. NASA Early Research and Analysis CenterThe Research and Analysis Center pre-expansion. NASA Research and Analysis CenterThe Research and Analysis Center after the expansion. The Graphics and Visualization Lab (GVIS) is in the upper left corner. NASA Lewis Advanced Cluster Environment (LACE)The Advanced Computational Concepts Lab’s (ACCL) Lewis Advanced Cluster Environment (LACE) in 1993. NASA Mobile Aeronautics Education Laboratory (MAEL) VR Flight SimulatorSetup showing location of the various equipment used in the Mobile Aeronautics Education Laboratory (MAEL) VR Flight Simulator.NASA Mobile Aeronautics Education Laboratory (MAEL) VR Flight SimulatorMAEL (Mobile Aeronautics Education Laboratory) trailer’s flight simulator supported multi-screen panoramic views or head-tracked Head Mounted Displays (HMDs). NASA WrightSimApollo 13 flight director Gene Kranz watches Jim Lovell pilot WrightSim. NASA 100 Years of Flight Gala CelebrationJohn Glenn talks to a Graphics and Visualization Lab (GVIS) programmer during the 2003 “100 Years of Flight Gala Celebration” event at NASA’s Glenn Research Center in Cleveland. NASA VR TreadmillThe concept of the VR treadmill was used to test if duplicating a visual-motor linkage was feasible for long-duration spaceflight. NASA 2000s VisualizationTurn-of-the-century Graphics and Visualization Lab (GVIS) model. NASA 2000s VisualizationTurn-of-the-century Graphics and Visualization Lab (GVIS) model. NASA 2000s Visualization Turn-of-the-century Graphics and Visualization Lab (GVIS) model. NASA Aeroshark ClusterThe Advanced Computational Concepts Lab’s (ACCL) Aeroshark Cluster in 2001. NASA Early 2000s Graphics and Visualization Lab (GVIS)The turn-of-the-century Graphics and Visualization Lab (GVIS), shown in 2004. NASA Advanced Communications Environment (ACE) ClusterThe Advanced Computational Concepts Lab’s (ACCL) Advanced Communications Environment (ACE) Cluster in 2005. NASA Early Computer Automatic Virtual Environment (CAVE)A Graphics and Visualization Lab (GVIS) team member demonstrating the old Computer Automatic Virtual Environment (CAVE). NASA Current Computer Automatic Virtual Environment (CAVE)A Graphics and Visualization Lab (GVIS) intern in the Computer Automatic Virtual Environment (CAVE). NASA GVIS NowToday, the GVIS Lab has the same mission that it had in 1989: to apply the latest visualization and human interaction technologies to advance NASA’s missions. The team takes pride in pushing the limits of scientific visualization and computer science, helping fellow researchers make sense of their data, and inspiring the next generation through demonstrations and presentations. Computational technology has come a long way since the days of ICARE, but GVIS has continued to explore current and cutting-edge technologies.
In addition to scientific visualization and experimental computational technologies, the GVIS Lab now also specializes in virtual design, interactive 3D simulations, natural user interface development, applications of computer science, and mission scenario visualizations. The team uses the latest edition of 3D programs and VR devices to experiment with how these systems can be used to visualize data, pushing their input and output capabilities.
With all this technology, GVIS also supports the visualization of a wide variety of 3D data and models such as CAD, point clouds, and volume data. Additionally, the lab is capable of high-impact data visualization, web-based visualization, time-accurate data representation, and designing and testing CAD models in virtual reality.
The Graphics and Visualization Lab (GVIS) team attends a STEM outreach event at the Cleveland Museum of Natural History.NASA Public EngagementOutside of the lab, GVIS has a longstanding history of taking its technology demonstrations across the city, throughout the country, and around the world. The team has extensive experience organizing, presenting, and facilitating STEM-based educational outreach for a variety of different events and venues. Inside the lab, GVIS supports the education and career exploration of its high school and college interns through mentorship, community engagement opportunities, and access to cutting-edge technology.
STEM Engagement EventVisitors interact with the Graphics and Visualization Lab (GVIS) team while attending Score with STEM, an event organized by the Cleveland Cavaliers. NASA/GRC/Jef Janis STEM Engagement EventA visitor interacts with a Graphics and Visualization Lab (GVIS) team member while attending Dino Days at the Cleveland Museum of Natural History. NASA STEM Engagement EventA Graphics and Visualization Lab (GVIS) Intern interacts with visitors at a STEM outreach event. NASA STEM Engagement EventGraphics and Visualization Lab (GVIS) team members attend Women in Aviation Day organized by Women in Aviation International (WAI). NASA GRUVE Lab ToursThe Graphics and Visualization Lab (GVIS) team provides tours of NASA labs and facilities. NASA GVIS Lab ToursA Graphics and Visualization Lab (GVIS) team member demonstrates VR visualizations. NASA GRUVE Lab ToursVisitors interact with a visualization through the CAVE environment at the Graphics and Visualization Lab (GVIS). NASA Contact UsNeed to reach us? You can send an email directly to the GVIS Team (GRC-DL-GVIS@mail.nasa.gov) or to the team leader, Herb Schilling (hschilling@nasa.gov).
Share Details Last Updated Jul 23, 2025 Related Terms Explore More 3 min read 1942: Engine Roars to Life in First Test at Future NASA Glenn Article 1 year ago 2 min read NASA Glenn History Includes Contributions of Women in Aerospace Research Article 3 years ago 3 min read NASA Uses Cleveland Landmark for Microgravity Research in the 1960s Article 3 years ago Keep Exploring Discover More Topics From NASAExplore NASA’s History
Glenn Historic FacilitiesThis collection of webpages was created to document some of the historic facilities formerly located at NASA's Glenn Research Center…
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USBR Seal Team Fix Challenge
When a reservoir conduit cannot be closed, thousands of cubic feet of water can roar through uncontrolled, threatening public safety, irreplaceable reservoir storage, and power generation. Seal Team Fix invites engineers, fabricators, and creative problem-solvers to stop that torrent in its tracks. Your mission: design a rapid-deploying, temporary seal that can be deployed to a submerged 3- to 25-ft diameter conduit opening, accommodate differential pressure, and achieve a 95–98 % flow reduction – without leaning on trash racks or other non-structural surfaces. The competition unfolds in three phases: a short-format concept white paper, a funded prototype build, and a lab-scale hydraulic demonstration.
Award: $575,000 in total prizes
Open Date: July 22, 2025
Close Date: October 14, 2025
For more information, visit: https://www.herox.com/SealTeamFix
NASA, JAXA XRISM Satellite X-rays Milky Way’s Sulfur
4 min read
NASA, JAXA XRISM Satellite X-rays Milky Way’s SulfurAn international team of scientists have provided an unprecedented tally of elemental sulfur spread between the stars using data from the Japan-led XRISM (X-ray Imaging and Spectroscopy Mission) spacecraft.
Astronomers used X-rays from two binary star systems to detect sulfur in the interstellar medium, the gas and dust found in the space between stars. It’s the first direct measurement of both sulfur’s gas and solid phases, a unique capability of X-ray spectroscopy, XRISM’s (pronounced “crism”) primary method of studying the cosmos.
“Sulfur is important for how cells function in our bodies here on Earth, but we still have a lot of questions about where it’s found out in the universe,” said Lía Corrales, an assistant professor of astronomy at the University of Michigan in Ann Arbor. “Sulfur can easily change from a gas to a solid and back again. The XRISM spacecraft provides the resolution and sensitivity we need to find it in both forms and learn more about where it might be hiding.”
A paper about these results, led by Corrales, published June 27 in the Publications of the Astronomical Society of Japan.
Watch to learn how the XRISM (X-ray Imaging and Spectroscopy Mission) satellite took an unprecedented look at our galaxy’s sulfur. XRISM is led by JAXA (Japan Aerospace Exploration Agency) in collaboration with NASA, along with contributions from ESA (European Space Agency).NASA’s Goddard Space Flight Center
Using ultraviolet light, researchers have found gaseous sulfur in the space between stars. In denser parts of the interstellar medium, such as the molecular clouds where stars and planets are born, this form of sulfur quickly disappears.
Scientists assume the sulfur condenses into a solid, either by combining with ice or mixing with other elements.
When a doctor performs an X-ray here on Earth, they place the patient between an X-ray source and a detector. Bone and tissue absorb different amounts of the light as it travels through the patient’s body, creating contrast in the detector.
To study sulfur, Corrales and her team did something similar.
They picked a portion of the interstellar medium with the right density — not so thin that all the X-rays would pass through unchanged, but also not so dense that they would all be absorbed.
Then the team selected a bright X-ray source behind that section of the medium, a binary star system called GX 340+0 located over 35,000 light-years away in the southern constellation Scorpius.
This composite shows a section of the interstellar medium scientists X-rayed for sulfur using the Japan-led XRISM (X-ray Imaging and Spectroscopy Mission). X-ray binary GX 340+0 is the blue dot in the center. The composite contains a blend of imagery in X-rays (represented in deep blue), infrared, and optical light.DSS/DECaPS/eRosita/NASA’s Goddard Space Flight Center This composite shows a section of the interstellar medium scientists X-rayed for sulfur using the Japan-led XRISM (X-ray Imaging and Spectroscopy Mission). The X-ray binary 4U 1630–472 is highlighted at the center. The composite contains a blend of imagery in X-rays (represented in deep blue), infrared, and optical light.DSS/DECaPS/eRosita/NASA’s Goddard Space Flight CenterUsing the Resolve instrument on XRISM, the scientists were able to measure the energy of GX 340+0’s X-rays and determined that sulfur was present not only as a gas, but also as a solid, possibly mixed with iron.
“Chemistry in environments like the interstellar medium is very different from anything we can do on Earth, but we modeled sulfur combined with iron, and it seems to match what we’re seeing with XRISM,” said co-author Elisa Costantini, a senior astronomer at the Space Research Organization Netherlands and the University of Amsterdam. “Our lab has created models for different elements to compare with astronomical data for years. The campaign is ongoing, and soon we’ll have new sulfur measurements to compare with the XRISM data to learn even more.”
Iron-sulfur compounds are often found in meteorites, so scientists have long thought they might be one way sulfur solidifies out of molecular clouds to travel through the universe.
In their paper, Corrales and her team propose a few compounds that would match XRISM’s observations — pyrrhotite, troilite, and pyrite, which is sometimes called fool’s gold.
The researchers were also able to use measurements from a second X-ray binary called 4U 1630-472 that helped confirm their findings.
“NASA’s Chandra X-ray Observatory has previously studied sulfur, but XRISM’s measurements are the most detailed yet,” said Brian Williams, the XRISM project scientist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “Since GX 340+0 is on the other side of the galaxy from us, XRISM’s X-ray observations are a unique probe of sulfur in a large section of the Milky Way. There’s still so much to learn about the galaxy we call home.”
XRISM is led by JAXA (Japan Aerospace Exploration Agency) in collaboration with NASA, along with contributions from ESA (European Space Agency). NASA and JAXA developed Resolve, the mission’s microcalorimeter spectrometer.
Download images and videos through NASA’s Scientific Visualization Studio.By Jeanette Kazmierczak
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Media Contact:
Alise Fisher
202-358-2546
alise.m.fisher@nasa.gov
NASA Headquarters, Washington
NASA’s X-59 Makes a Move
NASA’s X-59 quiet supersonic research aircraft completed its first low-speed taxi test at U.S. Air Force Plant 42 in Palmdale, California, on July 10, 2025. This marked the first time the one-of-a-kind experimental aircraft has ever moved under its own power.
During the test, engineers and flight crews monitored the X-59 as it moved across the runway, working to validate critical systems like steering and braking. The taxiing represents the start of the X-59’s final series of ground tests before first flight.
The X-59 is the centerpiece of NASA’s Quesst mission, which aims to demonstrate quiet supersonic flight by reducing the loud sonic boom to a quieter “thump.”
Image Credit: NASA/Carla Thomas
NASA Tests New Heat Source Fuel for Deep Space Exploration
To explore the unknown in deep space, millions of miles away from Earth, it’s crucial for spacecraft to have ample power. NASA’s radioisotope power systems (RPS) are a viable option for these missions and have been used for over 60 years, including for the agency’s Voyager spacecraft and Perseverance Mars rover. These nuclear batteries provide long-term electrical power for spacecraft and science instruments using heat produced by the natural radioactive decay of radioisotopes. Now, NASA is testing a new type of RPS heat source fuel that could become an additional option for future long-duration journeys to extreme environments.
Historically, the radioisotope plutonium-238 (plutonium oxide) has been NASA’s RPS heat source fuel of choice, but americium-241 has been a source of interest for the past two decades in Europe. In January, the Thermal Energy Conversion Branch at NASA’s Glenn Research Center in Cleveland and the University of Leicester, based in the United Kingdom, partnered through an agreement to put this new option to the test.
One method to generate electricity from radioisotope heat sources is the free-piston Stirling convertor. This is a heat engine that converts thermal energy into electrical energy. However, instead of a crankshaft to extract power, pistons float freely within the engine. It could operate for decades continuously without wear, as it does not have piston rings or rotating bearings that will eventually wear out. Thus, a Stirling convertor could generate more energy, allowing more time for exploration in deep space. Researchers from the University of Leicester — who have been leaders in the development of americium RPS and heater units for more than 15 years — and NASA worked to test the capabilities of a Stirling generator testbed powered by two electrically heated americium-241 heat source simulators.
“The concept started as just a design, and we took it all the way to the prototype level: something close to a flight version of the generator,” said Salvatore Oriti, mechanical engineer at Glenn. “The more impressive part is how quickly and inexpensively we got it done, only made possible by a great synergy between the NASA and University of Leicester teams. We were on the same wavelength and shared the same mindset.”
Salvatore Oriti, mechanical engineer in the Thermal Energy Conversion Branch at NASA’s Glenn Research Center in Cleveland, adjusts the Stirling testbed in preparation for testing at the center in January 2025.Credit: NASA/Jef JanisThe university provided the heat source simulators and generator housing. The heat source simulator is the exact size and shape of their real americium-241 heat source, but it uses embedded electric heaters to create an equivalent amount of heat to simulate the decay of americium fuel and therefore drive generator operation. The Stirling Research Lab at Glenn provided the test station, Stirling convertor hardware, and support equipment.
“A particular highlight of this (testbed) design is that it is capable of withstanding a failed Stirling convertor without a loss of electrical power,” said Hannah Sargeant, research fellow at the University of Leicester. “This feature was demonstrated successfully in the test campaign and highlights the robustness and reliability of an Americium-Radioisotope Stirling Generator for potential future spaceflight missions, including long-duration missions that could operate for many decades.”
The test proved the viability of an americium-fueled Stirling RPS, and performance and efficiency targets were successfully met. As for what’s next, the Glenn team is pursuing the next version of the testbed that will be lower mass, higher fidelity, and undergo further environmental testing.
“I was very pleased with how smoothly everything went,” Oriti said of the test results. “Usually in my experience, you don’t accomplish everything you set out to, but we did that and more. We plan to continue that level of success in the future.”
For more information on NASA’s RPS programs, visit:
https://science.nasa.gov/rps
On June 16-17, 2025, 50 students at Camp Young in Chesapeake, Virginia traded their usual…
Article 22 hours ago 6 min read 5 Things to Know About Powerful New U.S.-India Satellite, NISAR Article 1 day ago 3 min read NASA-Derived Textiles are Touring France by Bike Article 4 days agoNASA’s SpaceX Crew-10 to Discuss Station Mission, Upcoming Return
Media are invited to hear from NASA’s SpaceX Crew-10 during a news conference beginning at 10:40 a.m. EDT, Friday, July 25, from the International Space Station.
NASA astronauts Anne McClain and Nichole Ayers, JAXA (Japan Aerospace Exploration Agency) astronaut Takuya Onishi, and Roscosmos cosmonaut Kirill Peskov will discuss their upcoming return to Earth on the agency’s YouTube channel.
Media interested in participating must contact the newsroom at NASA’s Johnson Space Center in Houston no later than 5 p.m., Thursday, July 24, at 281-483-5111 or jsccommu@mail.nasa.gov. To ask questions, media must dial into the news conference no later than 10 minutes prior to the start of the call. A copy of NASA’s media accreditation policy is online.
Crew-10 joined the Expedition 72 crew when arriving to the station in March. Throughout Expedition 72 and into Expedition 73, the crew aboard the space station contributed to hundreds of experiments, including testing expanded capabilities of existing hardware for pharmaceutical production in space, investigating how cells sense gravity, which is an important aspect of space biology, and examining the effects of microgravity on protein yields in microalgae, a potential source for life support, fuel, and food on long-duration missions.
The crew will depart the space station after the arrival of Crew-11 and a handover period. Ahead of Crew-10’s return, mission teams will review weather conditions at the splashdown sites off the coast of California prior to departure from station.
The mission is part of NASA’s Commercial Crew Program, which provides reliable access to space, maximizing the use of the station for research and development and supporting future missions beyond low Earth orbit by partnering with private companies to transport astronauts to and from the space station.
Follow updates on the Crew-10 mission at:
https://www.nasa.gov/blogs/crew-10
-end-
Claire O’Shea
Headquarters, Washington
202-358-1100
claire.a.o’shea@nasa.gov
Courtney Beasley
Johnson Space Center, Houston
281-483-5111
courtney.m.beasley@nasa.gov
NASA Goddard Center Director Makenzie Lystrup Set to Depart
On Monday, NASA announced Dr. Makenzie Lystrup, director of NASA’s Goddard Space Flight Center in Greenbelt, Maryland, is set to leave the agency on Friday, Aug. 1.
As center director of Goddard, a role she has held since April 2023, Lystrup also was responsible for guiding the direction and management of multiple other NASA field installations including Wallops Flight Facility in Virginia, Katherine Johnson Independent Verification & Validation Facility in West Virginia, the White Sands Complex in New Mexico, and the Columbia Scientific Balloon Facility in Texas.
“Having served in a variety of science and aerospace civilian and government roles in her career, Makenzie has led development of, and/or contributed to a variety of NASA’s priority science missions including successful operations of our James Webb Space Telescope and Imaging X-Ray Polarimetry Explorer, as well as development of the agency’s Roman Space Telescope, and more,” said Vanessa Wyche, acting NASA associate administrator. “We’re grateful to Makenzie for her leadership at NASA Goddard for more than two years, including her work to inspire a Golden Age of explorers, scientists, and engineers.”
Throughout her time at NASA, Lystrup led Goddard’s workforce, which consists of more than 8,000 civil servants and contractors. Before joining the agency, Lystrup served as senior director for Ball’s Civil Space Advanced Systems and Business Development, where she managed new business activities for NASA, National Oceanic and Atmospheric Administration (NOAA), and other civilian U.S. government agencies as well as for academia and other science organizations. In addition, she served in the company’s Strategic Operations organization, based in Washington where she led Ball’s space sciences portfolio.
Prior to joining Ball, Lystrup worked as an American Institute of Physics – Acoustical Society of American Congressional Fellow from 2011 to 2012 where she managed a portfolio including technology, national defense, nuclear energy, and nuclear nonproliferation.
Lystrup also has served on boards and committees for several organizations to include the University Corporation for Atmospheric Research, International Society for Optics and Photonic, the University of Colorado, and the American Astronomical Society. She was named an American Association for the Advancement of Science fellow in 2019 for her distinguished record in the fields of planetary science and infrared astronomy, science policy and advocacy, and aerospace leadership. Lystrup also served as an AmeriCorps volunteer focusing on STEM education.
Lystrup holds a bachelor’s in physics from Portland State University and attended graduate school at University College London earning her doctorate in astrophysics. She was a National Science Foundation Astronomy & Astrophysics Postdoctoral Research Fellow spending time at the Laboratory for Atmospheric & Space Physics in Boulder, Colorado, and University of Liege in Belgium. As a planetary scientist and astronomer, Lystrup’s scientific work has been in using ground- and space-based astronomical observatories to understand the interactions and dynamics of planetary atmospheres and magnetospheres – the relationships between planets and their surrounding space environments.
Following Lystrup’s departure, NASA’s Cynthia Simmons will serve as acting center director. Simmons is the current deputy center director.
For more information about NASA’s work, visit:
-end-
Cheryl Warner / Kathryn Hambleton
Headquarters, Washington
202-358-1600
cheryl.m.warner@nasa.gov / kathryn.hambleton@nasa.gov
Katy Mersmann
Goddard Space Flight Center, Greenbelt, Md.
301-377-1724
katy.mersmann@nasa.gov
NASA Shares How to Save Camera 370-Million-Miles Away Near Jupiter
5 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater) The north polar region of Jupiter’s volcanic moon Io was captured by the JunoCam imager aboard NASA’s Juno during the spacecraft’s 57th close pass of the gas giant on Dec. 30, 2023. A technique called annealing was used to help repair radiation damage to the camera in time to capture this image. Image data: NASA/JPL-Caltech/SwRI/MSSS Image processing by Gerald EichstädtAn experimental technique rescued a camera aboard the agency’s Juno spacecraft, offering lessons that will benefit other space systems that experience high radiation.
The mission team of NASA’s Jupiter-orbiting Juno spacecraft executed a deep-space move in December 2023 to repair its JunoCam imager to capture photos of the Jovian moon Io. Results from the long-distance save were presented during a technical session on July 16 at the Institute of Electrical and Electronics Engineers Nuclear & Space Radiation Effects Conference in Nashville.
JunoCam is a color, visible-light camera. The optical unit for the camera is located outside a titanium-walled radiation vault, which protects sensitive electronic components for many of Juno’s engineering and science instruments.
This is a challenging location because Juno’s travels carry it through the most intense planetary radiation fields in the solar system. While mission designers were confident JunoCam could operate through the first eight orbits of Jupiter, no one knew how long the instrument would last after that.
Throughout Juno’s first 34 orbits (its prime mission), JunoCam operated normally, returning images the team routinely incorporated into the mission’s science papers. Then, during its 47th orbit, the imager began showing hints of radiation damage. By orbit 56, nearly all the images were corrupted.
The graininess and horizontal lines seen in this JunoCam image show evidence that the camera aboard NASA’s Juno mission suffered radiation damage. The image, which captures one of the circumpolar cyclones on Jupiter’s north pole, was taken Nov. 22, 2023. NASA/JPL-Caltech/SwRI/MSSS Long Distance Microscopic RepairWhile the team knew the issue may be tied to radiation, pinpointing what, specifically, was damaged within JunoCam was difficult from hundreds of millions of miles away. Clues pointed to a damaged voltage regulator that is vital to JunoCam’s power supply. With few options for recovery, the team turned to a process called annealing, where a material is heated for a specified period before slowly cooling. Although the process is not well understood, the idea is that the heating can reduce defects in the material.
“We knew annealing can sometimes alter a material like silicon at a microscopic level but didn’t know if this would fix the damage,” said JunoCam imaging engineer Jacob Schaffner of Malin Space Science Systems in San Diego, which designed and developed JunoCam and is part of the team that operates it. “We commanded JunoCam’s one heater to raise the camera’s temperature to 77 degrees Fahrenheit — much warmer than typical for JunoCam — and waited with bated breath to see the results.”
Soon after the annealing process finished, JunoCam began cranking out crisp images for the next several orbits. But Juno was flying deeper and deeper into the heart of Jupiter’s radiation fields with each pass. By orbit 55, the imagery had again begun showing problems.
“After orbit 55, our images were full of streaks and noise,” said JunoCam instrument lead Michael Ravine of Malin Space Science Systems. “We tried different schemes for processing the images to improve the quality, but nothing worked. With the close encounter of Io bearing down on us in a few weeks, it was Hail Mary time: The only thing left we hadn’t tried was to crank JunoCam’s heater all the way up and see if more extreme annealing would save us.”
Test images sent back to Earth during the annealing showed little improvement the first week. Then, with the close approach of Io only days away, the images began to improve dramatically. By the time Juno came within 930 miles (1,500 kilometers) of the volcanic moon’s surface on Dec. 30, 2023, the images were almost as good as the day the camera launched, capturing detailed views of Io’s north polar region that revealed mountain blocks covered in sulfur dioxide frosts rising sharply from the plains and previously uncharted volcanos with extensive flow fields of lava.
Testing LimitsTo date, the solar-powered spacecraft has orbited Jupiter 74 times. Recently, the image noise returned during Juno’s 74th orbit.
Since first experimenting with JunoCam, the Juno team has applied derivations of this annealing technique on several Juno instruments and engineering subsystems.
“Juno is teaching us how to create and maintain spacecraft tolerant to radiation, providing insights that will benefit satellites in orbit around Earth,” said Scott Bolton, Juno’s principal investigator from the Southwest Research Institute in San Antonio. “I expect the lessons learned from Juno will be applicable to both defense and commercial satellites as well as other NASA missions.”
More About JunoNASA’s Jet Propulsion Laboratory, a division of Caltech in Pasadena, California, manages the Juno mission for the principal investigator, Scott Bolton, of the Southwest Research Institute in San Antonio. Juno is part of NASA’s New Frontiers Program, which is managed at NASA’s Marshall Space Flight Center in Huntsville, Alabama, for the agency’s Science Mission Directorate in Washington. The Italian Space Agency, Agenzia Spaziale Italiana, funded the Jovian InfraRed Auroral Mapper. Lockheed Martin Space in Denver built and operates the spacecraft. Various other institutions around the U.S. provided several of the other scientific instruments on Juno.
More information about Juno is at:
News Media ContactDC Agle
Jet Propulsion Laboratory, Pasadena, Calif.
818-393-9011
agle@jpl.nasa.gov
Karen Fox / Molly Wasser
NASA Headquarters, Washington
202-358-1600
karen.c.fox@nasa.gov / molly.l.wasser@nasa.gov
Deb Schmid
Southwest Research Institute, San Antonio
210-522-2254
dschmid@swri.org
2025-091
Share Details Last Updated Jul 21, 2025 Related Terms Explore More 6 min read 5 Things to Know About Powerful New U.S.-India Satellite, NISAR Article 1 day ago 6 min read Meet Mineral Mappers Flying NASA Tech Out West Article 2 weeks ago 3 min read NASA Aircraft, Sensor Technology, Aid in Texas Flood Recovery Efforts Article 2 weeks ago Keep Exploring Discover Related TopicsMissions
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GLOBE-Trotting Science Lands in Chesapeake with NASA eClips
2 min read
GLOBE-Trotting Science Lands in Chesapeake with NASA eClipsOn June 16-17, 2025, 50 students at Camp Young in Chesapeake, Virginia traded their usual summer routines for microscopes. The NASA eClips team from the National Institute of Aerospace Center for Integrative STEM Education (NIA-CISE) taught two engaging lessons focused on macroinvertebrates and plankton, with a surprising star of the show – mosquitoes!
Camp Young, a Title I camp program serving students from Norfolk Public Schools, provides year-round, environmental science-based learning. The NASA eClips’ visit reinforced their mission to help students explore their environment on the Elizabeth River while seeing its place in the Earth System.
The lessons, designed for students in grades 3 through 8, were inspired by NASA’s GLOBE (Global Learning and Observations to Benefit the Environment) program, which encourages people around the world to collect and share environmental data as ‘citizen scientists’. This is where mosquitos stole the show! The lesson focuses on how these tiny insects can serve as indicators of climate and habitat change. By identifying mosquito larvae and understanding their breeding environments, students contributed to the bigger picture of global health and environmental monitoring, right from their own backyard.
During this experience, Camp Young’s stunning waterfront on the Elizabeth River was turned into a living laboratory. With phytoplankton nets, petri dishes, and sample jars in hand, campers ventured into the field to collect real environmental data, bringing their findings back to a cabin-turned-classroom to analyze them with scientific tools, including microscopes provided by the NASA eClips team.
Rather than just reading about ecosystems and the kinds of scientific questions that arise within them, students got to experience them firsthand and experience real science in the field. “It’s one thing to talk about microscopic marine organisms,” one instructor noted, “but it’s another thing entirely when students can actually see them swimming in a droplet from the river.”
The NASA eClips project provides educators with standards-based videos, activities, and lessons to increase STEM literacy through the lens of NASA. It is supported by NASA under cooperative agreement award number NNX16AB91A and is part of NASA’s Science Activation Portfolio. Learn more about how Science Activation connects NASA science experts, real content, and experiences with community leaders to do science in ways that activate minds and promote deeper understanding of our world and beyond: https://science.nasa.gov/learn
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The Day Earth Smiled
On July 19, 2013, NASA’s Cassini spacecraft had a rare opportunity to image Saturn and, far in the background, Earth. This image spans about 404,880 miles (651,591 kilometers) across.
With the Sun’s powerful and potentially damaging rays eclipsed by Saturn itself, Cassini’s onboard cameras were able to take advantage of this unique viewing geometry. They acquired a panoramic mosaic of the Saturn system that allows scientists to see details in the rings and throughout the system as they are backlit by the sun. This mosaic is special as it marks the third time our home planet was imaged from the outer solar system; the second time it was imaged by Cassini from Saturn’s orbit; and the first time ever that inhabitants of Earth were made aware in advance that their photo would be taken from such a great distance.
Before the mission ended in 2017, Cassini was already a powerful influence on future exploration. Lessons learned during Cassini’s mission are being applied in NASA’s Europa Clipper mission. The mission uses an orbital tour design derived from the way Cassini explored Saturn. Launched in 2024, Europa Clipper will reach Jupiter in April 2030 and make dozens of flybys of the planet’s icy moon to determine whether there are places below the surface that could support life.
Learn more about this unique image.
Image credit: NASA/JPL-Caltech/SSI
