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Astronauts Sophie Adenot of ESA (European Space Agency) and Jack Hathaway of NASA, both Expedition 74 flight engineers, look out a window in the cupola, monitoring the automated approach and docking of the SpaceX Dragon cargo spacecraft to the International Space Station on May 17, 2026. The orbital outpost was soaring 259 miles above the Indian Ocean just west of the Maldives at the time of this photograph.
See the cupola and other parts of the space station in our guided tour.
Image credit: ESA/Sophie Adenot
Hearing loss is bad for the whole body – but new treatments are coming
Hidden store of manganese may have helped Earth get its oxygen
Could the Milky Way’s Missing Mass Be Hiding in a Swarm of Interstellar Comets?
3I/ATLAS has caused quite a stir over the last year, inviting astronomers to update what they know about other solar systems as well as our own. However, this third interstellar visitor may have an unexpected impact on our understanding of dark matter. A new paper, available in pre-print on arXiv from researchers at the University of Hamburg, attempts to calculate the impact that the presence of large amounts of interstellar objects (ISOs) would have on our calculation of dark matter in our galaxy.
NASA Testing Wastewater Treatment Facility for Future Moon Base
A mobile wastewater treatment system built at NASA’s Kennedy Space Center in Florida that can help prepare for long-duration missions on the Moon and Mars departed the spaceport and arrived at the University of North Dakota in Grand Forks. Graduate students at the university will test the technology under conditions designed to closely mimic the challenges of operating on another planetary surface.
The Divergent Deployable Wastewater Treatment Facility is designed to turn crew wastewater into useful resources, which future explorers will need every day. At the University of North Dakota, teams will integrate this new wastewater system with the university’s Integrated Lunar/Martian Analog Habitat. Student operators and NASA researchers will study how the facility performs when connected to a habitat-like environment and exposed to the kinds of operational limits crews could face on another planet.
“NASA’s Artemis program is laying the groundwork for a sustained human presence on the Moon, where habitats will need to operate far from the steady resupply chain that supports astronauts in partial gravity,” said Luke Roberson, surface water systems lead within the Mars Campaign Office at NASA Kennedy. “To solve that challenge, we are developing the future of sustainable lunar surface systems to process wastewater into nutrient feedstocks for plants and biomanufacturing.”
How Treatment System WorksHoused inside an 8.5-by-24-foot trailer, the facility brings together three biological reactor systems, a vertical garden, water-polishing hardware, environmental monitoring, autonomous control software, and safety systems. The trailer was outfitted at NASA Kennedy to function as a deployable laboratory and to travel between at least two simulation test sites as the technology matures.
Unlike wastewater systems on Earth, this facility keeps waste streams separate. That divergent approach is important for small crews, because wastewater from four to eight people can be highly concentrated. Urine, hygiene water, laundry water, fecal waste, and food waste each contain different levels of salts, solids, carbon, nitrogen, phosphorus, and other compounds. Treating them separately allows each stream to be processed by the reactor best suited for the job.
To do that, the system uses three different bioreactors to treat waste streams. The Anaerobic Phototrophic Membrane Bioreactor processes fecal and food waste and converts it into a nutrient-rich wastewater that can support plant growth. The Suspended Aerobic Membrane Bioreactor processes urine and flush water. The Membrane Aerated Biological Reactor treats graywater from hygiene and laundry activities. Collectively, the bioreactors process nutrients to feed the facility’s vertical garden and prepare the water for reuse. Inside that garden, crops will grow hydroponically, or without using soil, by using nutrient solutions derived from the bioreactors. Researchers will compare crop performance with plants grown using standard hydroponic nutrients.
NASA’s Dr. Roberson demonstrating the Divergent Wastewater Treatment Facility to UND Chair Dr. De Leon and Dr. Robert Kraus, Dean of UND’s School of Aerospace Sciences.University of North Dakota
At North Dakota, under a NASA EPSCoR (Established Program to Stimulate Competitive Research) grant, the facility was connected to the Integrated Lunar/Martian Analog Habitat through a bathroom interface that includes a urine-diverting toilet. The setup will allow different waste streams to be separated at the source and sent to the correct treatment systems. In parallel, Ali Alshami’s team is developing novel membrane-based separation technologies intended for future integration into the divergent wastewater facility to improve water recovery efficiency, contaminant rejection, and overall system resilience for long-duration habitation missions.
“The tests will help NASA evaluate real-world operation, crew training needs, system reliability, and how wastewater simulants compare with actual human metabolic waste in an analog mission environment,” said Alshami.
These efforts are focused on advancing compact, energy-efficient treatment approaches capable of handling complex wastewater streams generated in closed-loop extraterrestrial environments.
“The testing campaign at the University of North Dakota supports the facility’s technology maturation from laboratory-scale validation toward demonstration in a relevant Inflatable Lunar/Martian Analog Habitat environment,” said Pablo De Leon, professor and department chair of Space Studies at the University of North Dakota.
Lessons learned could inform future higher-fidelity tests, including potential integration with NASA’s next generation of yearlong simulated Mars missions via isolation analogs at the agency’s Johnson Space Center in Houston.
Technology for Making Moon Base SustainableThe work is part of NASA’s broader Bioregenerative Life Support Systems effort, which is developing biological approaches to reduce dependence on Earth-supplied consumables. In future lunar or Martian habitats, systems like the wastewater treatment facility could help close life support loops by recovering water, recycling nutrients, supporting crop production, and reducing the amount of waste that must be stored or discarded. Further NASA research completed trade studies demonstrating how bioregenerative life support becomes more effective for space travel over current life support technologies.
NASA researchers also are exploring how wastewater-recovered resources could support in-space manufacturing. One effort is studying how nutrient-rich water from bioregenerative wastewater systems could feed microbes that produce lactic acid, which can be turned into polylactic acid. The material could one day serve as a binder for 3D printing with lunar or Martian regolith, the loose, fragmental surface material, or could be used for replacement parts, extending the value of recovered waste beyond water and food systems.
“By sending the facility from NASA Kennedy to North Dakota, the agency is moving a key part of that circular economy out of the lab and into a real-world test,” said J.J. Edelmann, surface systems domain lead for the Mars Campaign Office at NASA Headquarters in Washington. “The work may begin with wastewater, but its goal is much larger. We want to help future crews live sustainably on the Moon, learn how to operate farther from Earth, and carry those lessons forward to Mars.”
To learn more about the agency’s lunar and Mars exploration, visit:
Be a Clump Scout and Help Reveal Secrets of Stellar Nurseries
In the mid-20th century, astronomers discovered strange “clumpy” galaxies filled with mysterious bright blobs – massive stellar nurseries where stars are born at an explosive rate. Curiously, these clumpy galaxies were much more common in the early universe than they are today. We still don’t know why they vanished.
The Euclid space telescope, an ESA (European Space Agency) mission with critical contributions from NASA, has begun to capture images of millions of galaxies. These images – far more than any team of professional scientists could ever catalog alone – include high-definition views of clumpy galaxies that promise to reveal structure within and among the clumps. Astronomers hope to use these images to obtain new information about which galaxies host clumps, where the clumps are, how and why they evolved, and more – but they need your help!
To tackle this mountain of data, scientists are creating a “digital assistant” in the form of machine learning, a kind of artificial intelligence. The machine algorithm has been partially trained with results from an earlier project called “Galaxy Zoo: Clump Scout.” Now, as a volunteer for the new Galaxy Zoo: Clump Scout II project, you’ll improve and train this tool further. You’ll examine images of galaxies that the machine has labelled with squares where it thinks it sees a real clump. The machine often gets confused by distant stars or camera glitches. So you’ll gently move those squares around, delete them, or add new ones, to help the algorithm learn.
As a part of Galaxy Zoo: Clump Scout II, you will help investigate how giant star-forming nurseries formed, solve the mystery of their disappearance over cosmic time, and reveal more about how star formation really works in galaxies. All you need is a laptop or smartphone. Click here to learn more!
A clumpy galaxy seen by telescopes with the Sloan Digital Sky Survey (left), the Hyper Suprime-Cam (middle) and the Euclid mission (right). You can see how the better resolving power of each subsequent telescope helps us see more and more detail about the star-forming clumps. (The bright object at the bottom right is a foreground star.) Image data: SDSS (left; Sloan Digital Sky Survey – CC BY 4.0); HSC (center; NAOJ/HSC Project – CC BY 4.0); Euclid (right; ESA/Euclid/Euclid Consortium/NASA – CC BY 3.0 IGO). Image post-processing and compilation by Hugh Dickinson and Jürgen Popp. Learn More and Get Involved Galaxy Zoo: Clump Scout II
Identify star-forming clumps in galaxy images, and help train machines to do the same.
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New Scientist recommends Togetherness, a radical new view of life
Spacewalking With Scott Wray, Artemis EVA Training Lead
Scott Wray’s experience with spacewalks started when he was about 6 years old. A tent resembling a lunar lander provided the perfect imaginary spacecraft. “I would lie on my back with my feet propped up on a pillow as I imagined going through a launch countdown sequence,” he said. “Then I would exit the tent into a darkened bedroom and hop around just like the footage I had seen of Apollo astronauts.”
Today, with more than 16 years at NASA’s Johnson Space Center under his belt, Wray is proud to have shaped spacewalk training across three eras of human spaceflight.
Scott Wray smiles before a suited test run with Johnson’s Active Response Gravity Offload System. NASA/Josh Valcarcel
The childhood fascination with spaceflight evolved into a passion for engineering, demonstrated through countless LEGO and airplane model builds and voracious readership of aircraft design books. His path to NASA was cemented by a week-long camp at Space Center Houston, which included several tours of Johnson’s signature facilities and a visit by former NASA Flight Director Gene Kranz. “I was so inspired by the facilities and the incredible history of this place, I knew that I had to work here someday,” he said.
Wray participated in NASA’s Contractor Co-op Program with United Space Alliance while studying aerospace engineering at Embry-Riddle Aeronautical University and completed several tours with different organizations at Johnson. At the time, astronauts were training to conduct spacewalks, also known as EVAs, for both the Space Shuttle and International Space Station programs. During one co-op experience with the shuttle’s In-Flight Maintenance Team (IFM), Wray observed the IFM and EVA teams collaborating with the STS-117 crew to fix the peeled-back thermal blanket on space shuttle Atlantis’s Orbital Maneuvering System pod. He helped the teams develop crew procedures for practicing the repair inside the shuttle, using surgical staples and pins to tack the blanket down. “This real-time troubleshooting is where I learned about the EVA group and set my sights on working there during my final co-op tour,” he said. “I love to be hands-on, to take things apart and come up with creative solutions – that’s what really attracted me to EVA.”
EVA work also reminded Wray of time spent as a dog mushing guide in Alaska. “That is where I got my first taste of expeditionary skills,” he said. “We lived in a remote glacier camp, taking care of 250 Alaskan Huskies. I learned how to make do with the tools you have and make repairs to a broken sled miles away from home.” At times, Johnson’s EVA team must create similar workarounds. “Some of our best moments as a team have come when our hardware or vehicle has malfunctioned, requiring us to devise a real-time solution,” he said. “It sounds scrappy, but I think it’s how we put the human into human spaceflight.”
Wray became a full-time EVA team member at Johnson after graduation, working under various contracts until he transitioned to a civil servant position in 2021. He started as an EVA instructor focused on tools and hardware and teaching astronauts how to perform their maintenance and repair duties. As NASA’s astronaut corps evolved to include a wider range of backgrounds and body types, Wray worked to develop new EVA techniques and tools that could accommodate any crew member. “That meant creating a curriculum that capitalized on individual strengths while building teamwork and resilience,” he said.
Scott Wray prepares JAXA (Japan Aerospace Exploration Agency) astronaut Kimiya Yui for an EVA training run in the Neutral Buoyancy Laboratory pool. NASA/Bill Stafford
Wray also served as a flight controller for shuttle and space station EVAs. He remembers being on console in Johnson’s Mission Control Center during a space station EVA in July 2013. That excursion was terminated early after water began filling the spacesuit helmet of ESA (European Space Agency) astronaut Luca Parmitano, and the team could neither determine its source nor stop its flow. “That incident taught me that even after decades of operating a spacesuit, there are still failure modes we haven’t imagined,” he said. “It reinforced the need for vigilance, adaptability, and continuous learning—because in human spaceflight, lives depend on it.”
In the last few years, Wray’s responsibilities shifted to preparing Artemis crew members for missions to the Moon. Now the Artemis EVA training lead, Wray oversees the development of training flows that will ready astronauts for lunar surface operations – a challenge NASA has not faced in over 50 years.
Scott Wray participates in a nighttime evaluation of EVA operations at the Johnson Space Center Rock Yard in March 2021. The evening test was designed to better understand the impact of lunar South Pole lighting conditions on EVA operations.
While many astronauts have completed space station training or an EVA, the skills required for lunar exploration will be different. “It’s going to be a completely new spacesuit, new vehicles, new environment,” Wray said. “And now they’re going to be walking instead of translating with their hands like we do on station.” At the same time, trainings must go beyond these foundational spacewalk techniques. “Our curriculum integrates geology, covering topics like impact cratering, volcanology, sample collection, and traverse planning,” Wray explained. “It’s about enabling astronauts to become effective field scientists while mastering complex EVA operations.”
To build these skills, the team uses multiple training environments. The Neutral Buoyancy Laboratory has been NASA’s flagship EVA training facility since it opened in 1997, but the team also uses the Active Response Gravity Offload System for suited mobility practice. Additional training systems include virtual reality, lighting laboratories that simulate the Moon’s harsh South Pole lighting conditions, field sites for geology training and sample collection, and suit simulators that prepare astronauts to respond to caution-and-warning scenarios.
“Spearheading this effort as EVA training lead allows me to ensure every element—from science to operations—is integrated into a program that will prepare astronauts for success on the Moon and beyond,” Wray said. “This effort is more than preparation, it’s the foundation for future exploration and a steppingstone toward Mars. Knowing that our work will help shape the next era of human spaceflight is incredibly rewarding.”
Scott Wray serves as the test subject for Exploration EVA Pressure Garment Subsystem mobility data collection using the Active Response Gravity Offload System.
Amid these complex preparations, Wray still finds time for new pursuits outside of the office. His daughter inspired him and his wife to try an acting class at a local fine arts studio, leading to Wray’s on-stage debut in a performance of “Rock of Ages.” He starred as William Shakespeare in this year’s production of “Something Rotten.” “I never would have thought I’d have so much fun acting, singing, and dancing on stage,” he said. “The community we are part of and the ability to join our daughter in activities she enjoys has been so rewarding.”
Wray said he is incredibly grateful to play another role off-stage – being part of missions that will conduct meaningful science on the lunar surface. “Returning to the Moon is something I’ve dreamed about since I was a kid,” he said. “Artemis isn’t just about going back—it’s about shaping the future. When we choose to push the boundaries of exploration, the advancements we make don’t just expand knowledge, they create lasting benefits for all of humanity.”
About the AuthorLinda E. Grimm Share Details Last Updated May 28, 2026 Related Terms Explore More 5 min read NASA Testing Wastewater Treatment Facility for Future Moon Base Article 5 hours ago 3 min read NASA to Conduct Low-Altitude Flights Near Houston Article 1 day ago 4 min read I Am Artemis: Daniel Stubbs Article 5 days ago Keep Exploring Discover More Topics From NASAMissions
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Spacewalking With Scott Wray, Artemis EVA Training Lead
Scott Wray’s experience with spacewalks started when he was about 6 years old. A tent resembling a lunar lander provided the perfect imaginary spacecraft. “I would lie on my back with my feet propped up on a pillow as I imagined going through a launch countdown sequence,” he said. “Then I would exit the tent into a darkened bedroom and hop around just like the footage I had seen of Apollo astronauts.”
Today, with more than 16 years at NASA’s Johnson Space Center under his belt, Wray is proud to have shaped spacewalk training across three eras of human spaceflight.
Scott Wray smiles before a suited test run with Johnson’s Active Response Gravity Offload System. NASA/Josh ValcarcelThe childhood fascination with spaceflight evolved into a passion for engineering, demonstrated through countless LEGO and airplane model builds and voracious readership of aircraft design books. His path to NASA was cemented by a week-long camp at Space Center Houston, which included several tours of Johnson’s signature facilities and a visit by former NASA Flight Director Gene Kranz. “I was so inspired by the facilities and the incredible history of this place, I knew that I had to work here someday,” he said.
Wray participated in NASA’s Contractor Co-op Program with United Space Alliance while studying aerospace engineering at Embry-Riddle Aeronautical University and completed several tours with different organizations at Johnson. At the time, astronauts were training to conduct spacewalks, also known as EVAs, for both the Space Shuttle and International Space Station programs. During one co-op experience with the shuttle’s In-Flight Maintenance Team (IFM), Wray observed the IFM and EVA teams collaborating with the STS-117 crew to fix the peeled-back thermal blanket on space shuttle Atlantis’s Orbital Maneuvering System pod. He helped the teams develop crew procedures for practicing the repair inside the shuttle, using surgical staples and pins to tack the blanket down. “This real-time troubleshooting is where I learned about the EVA group and set my sights on working there during my final co-op tour,” he said. “I love to be hands-on, to take things apart and come up with creative solutions – that’s what really attracted me to EVA.”
EVA work also reminded Wray of time spent as a dog mushing guide in Alaska. “That is where I got my first taste of expeditionary skills,” he said. “We lived in a remote glacier camp, taking care of 250 Alaskan Huskies. I learned how to make do with the tools you have and make repairs to a broken sled miles away from home.” At times, Johnson’s EVA team must create similar workarounds. “Some of our best moments as a team have come when our hardware or vehicle has malfunctioned, requiring us to devise a real-time solution,” he said. “It sounds scrappy, but I think it’s how we put the human into human spaceflight.”
Wray became a full-time EVA team member at Johnson after graduation, working under various contracts until he transitioned to a civil servant position in 2021. He started as an EVA instructor focused on tools and hardware and teaching astronauts how to perform their maintenance and repair duties. As NASA’s astronaut corps evolved to include a wider range of backgrounds and body types, Wray worked to develop new EVA techniques and tools that could accommodate any crew member. “That meant creating a curriculum that capitalized on individual strengths while building teamwork and resilience,” he said.
Scott Wray prepares JAXA (Japan Aerospace Exploration Agency) astronaut Kimiya Yui for an EVA training run in the Neutral Buoyancy Laboratory pool. NASA/Bill StaffordWray also served as a flight controller for shuttle and space station EVAs. He remembers being on console in Johnson’s Mission Control Center during a space station EVA in July 2013. That excursion was terminated early after water began filling the spacesuit helmet of ESA (European Space Agency) astronaut Luca Parmitano, and the team could neither determine its source nor stop its flow. “That incident taught me that even after decades of operating a spacesuit, there are still failure modes we haven’t imagined,” he said. “It reinforced the need for vigilance, adaptability, and continuous learning—because in human spaceflight, lives depend on it.”
In the last few years, Wray’s responsibilities shifted to preparing Artemis crew members for missions to the Moon. Now the Artemis EVA training lead, Wray oversees the development of training flows that will ready astronauts for lunar surface operations – a challenge NASA has not faced in over 50 years.
Scott Wray participates in a nighttime evaluation of EVA operations at the Johnson Space Center Rock Yard in March 2021. The evening test was designed to better understand the impact of lunar South Pole lighting conditions on EVA operations.While many astronauts have completed space station training or an EVA, the skills required for lunar exploration will be different. “It’s going to be a completely new spacesuit, new vehicles, new environment,” Wray said. “And now they’re going to be walking instead of translating with their hands like we do on station.” At the same time, trainings must go beyond these foundational spacewalk techniques. “Our curriculum integrates geology, covering topics like impact cratering, volcanology, sample collection, and traverse planning,” Wray explained. “It’s about enabling astronauts to become effective field scientists while mastering complex EVA operations.”
To build these skills, the team uses multiple training environments. The Neutral Buoyancy Laboratory has been NASA’s flagship EVA training facility since it opened in 1997, but the team also uses the Active Response Gravity Offload System for suited mobility practice. Additional training systems include virtual reality, lighting laboratories that simulate the Moon’s harsh South Pole lighting conditions, field sites for geology training and sample collection, and suit simulators that prepare astronauts to respond to caution-and-warning scenarios.
“Spearheading this effort as EVA training lead allows me to ensure every element—from science to operations—is integrated into a program that will prepare astronauts for success on the Moon and beyond,” Wray said. “This effort is more than preparation, it’s the foundation for future exploration and a steppingstone toward Mars. Knowing that our work will help shape the next era of human spaceflight is incredibly rewarding.”
Scott Wray serves as the test subject for Exploration EVA Pressure Garment Subsystem mobility data collection using the Active Response Gravity Offload System.Amid these complex preparations, Wray still finds time for new pursuits outside of the office. His daughter inspired him and his wife to try an acting class at a local fine arts studio, leading to Wray’s on-stage debut in a performance of “Rock of Ages.” He starred as William Shakespeare in this year’s production of “Something Rotten.” “I never would have thought I’d have so much fun acting, singing, and dancing on stage,” he said. “The community we are part of and the ability to join our daughter in activities she enjoys has been so rewarding.”
Wray said he is incredibly grateful to play another role off-stage – being part of missions that will conduct meaningful science on the lunar surface. “Returning to the Moon is something I’ve dreamed about since I was a kid,” he said. “Artemis isn’t just about going back—it’s about shaping the future. When we choose to push the boundaries of exploration, the advancements we make don’t just expand knowledge, they create lasting benefits for all of humanity.”
About the AuthorLinda E. Grimm Share Details Last Updated May 28, 2026 Related Terms Explore More 3 min read NASA to Conduct Low-Altitude Flights Near Houston Article 15 hours ago 4 min read I Am Artemis: Daniel Stubbs Article 4 days ago 5 min read NASA Uses Mineralogical Marker to Understand Ancient Martian ClimateScientists analyzed 20 Martian samples collected by NASA’s Curiosity Rover and found that differences in…
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NASA Awards Modification Contract for Reduced Gravity Test Aircraft
1 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater) NASA
NASA selected Denmar Technical Services of Nevada to provide aircraft modifications, maintenance, and testing services to the Human Spaceflight Mission Directorate at NASA’s Armstrong Flight Research Center in Edwards, California, and Johnson Space Center in Houston.
The award is a firm-fixed-price contract and will be time and material for any over and above and unforeseen work. This contract has a maximum potential value of $8.4 million, which runs through Feb. 1, 2027.
The contractor will modify a Boeing 737-700 aircraft to perform lunar-gravity parabolic flights to test NASA space equipment. Once modifications are complete, NASA Armstrong will own the aircraft and oversee aircraft operations out of NASA Johnson.
The aircraft will be used to validate astronaut lunar suits and associated crew systems required to support Artemis mission objectives. This can be done with the modified 737 aircraft in an operationally relevant, reduced-gravity environment prior to lunar mission execution.
For information about NASA and agency programs, visit:
-end-
Dede Dinius
Armstrong Flight Research Center, Edwards, Calif.
661-276-5701
darin.l.dinius@nasa.gov
NASA Awards Modification Contract for Reduced Gravity Test Aircraft
1 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater) NASANASA selected Denmar Technical Services of Nevada to provide aircraft modifications, maintenance, and testing services to the Human Spaceflight Mission Directorate at NASA’s Armstrong Flight Research Center in Edwards, California, and Johnson Space Center in Houston.
The award is a firm-fixed-price contract and will be time and material for any over and above and unforeseen work. This contract has a maximum potential value of $8.4 million, which runs through Feb. 1, 2027.
The contractor will modify a Boeing 737-700 aircraft to perform lunar-gravity parabolic flights to test NASA space equipment. Once modifications are complete, NASA Armstrong will own the aircraft and oversee aircraft operations out of NASA Johnson.
The aircraft will be used to validate astronaut lunar suits and associated crew systems required to support Artemis mission objectives. This can be done with the modified 737 aircraft in an operationally relevant, reduced-gravity environment prior to lunar mission execution.
For information about NASA and agency programs, visit:
-end-
Dede Dinius
Armstrong Flight Research Center, Edwards, Calif.
661-276-5701
darin.l.dinius@nasa.gov