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By NASA
NICER (left) is shown mounted to the International Space Station, and LEXI (right) is shown attached to the top of Firefly Aerospace’s Blue Ghost in an artist’s rendering.NASA/Firefly Aerospace The International Space Station supports a wide range of scientific activities from looking out at our universe to breakthroughs in medical research, and is an active proving ground for technology for future Moon exploration missions and beyond. Firefly Aerospace’s Blue Ghost Mission-1 landed on the Moon on March 2, 2025, kicking off science and technology operations on the surface, including three experiments either tested on or enabled by space station research. These projects are helping scientists study space weather, navigation, and computer performance in space— knowledge crucial for future Moon missions.
One of the experiments, the Lunar Environment Heliospheric X-ray Imager (LEXI), is a small telescope designed to study the Earth’s magnetic environment and its interaction with the solar wind. Like the Neutron star Interior Composition Explorer (NICER) telescope mounted outside of the space station, LEXI observes X-ray sources. LEXI and NICER observed the same X-ray star to calibrate LEXI’s instrument and better analyze the X-rays emitted from Earth’s upper atmosphere, which is LEXI’s primary target. LEXI’s study of the interaction between the solar wind and Earth’s protective magnetosphere could help researchers develop methods to safeguard future space infrastructure and understand how this boundary responds to space weather.
Other researchers sent the Radiation Tolerant Computer System (RadPC) to the Moon to test how computers can recover from radiation-related faults. Before RadPC flew on Blue Ghost, researchers tested a radiation tolerant computer on the space station and developed an algorithm to detect potential hardware faults and prevent critical failures. RadPC aims to demonstrate computer resilience in the Moon’s radiation environment. The computer can gauge its own health in real time, and RadPC can identify a faulty location and repair it in the background as needed. Insights from this investigation could improve computer hardware for future deep-space missions.
In addition, the Lunar Global Navigation Satellite System (GNSS) Receiver Experiment (LuGRE) located on the lunar surface has officially received a GNSS signal at the farthest distance from Earth, the same signals that on Earth are used for navigation on everything from smartphones to airplanes. Aboard the International Space Station, Navigation and Communication Testbed (NAVCOM) has been testing a backup system to Earth’s GNSS using ground stations as an alternative method for lunar navigation where GNSS signals may have limitations. Bridging existing systems with emerging lunar-specific navigation solutions could help shape how spacecraft navigate the Moon on future missions.
The International Space Station serves as an important testbed for research conducted on missions like Blue Ghost and continues to lay the foundation for technologies of the future.
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By European Space Agency
Image: A solar array of the Orion spacecraft for Artemis II with the ESA and NASA logos View the full article
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By NASA
Technicians with ESA (European Space Agency) and Airbus installed the four solar array wings on NASA’s Orion spacecraft for Artemis II on March 3. The solar array wings, attached to the service module, deploy after Orion reaches space to power the spacecraft.
Orion’s service module provides propulsion, thermal control, and electrical power, as well as air and water for the crew during their mission around the Moon.
Each solar array wing has 15,000 solar cells to convert sunlight to electricity and is nearly 23 feet in length when fully deployed. In space, the arrays can turn on two axes to remain aligned with the Sun.
Artemis II is the first crewed mission under NASA’s Artemis campaign. Through Artemis, the agency will send astronauts to explore the Moon for scientific discovery, economic benefits, and build the foundation for the first crewed missions to Mars.
Image credit: NASA/Kim Shiflett
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By European Space Agency
Launched just two months ago and still in the process of being commissioned for service, the Copernicus Sentinel-1C satellite is, remarkably, already showing how its radar data can be used to map the shape of Earth’s land surface with extreme precision.
These first cross-satellite ‘interferometry’ results assure its ability to monitor subsidence, uplift, glacier flow, and disasters such as landslides and earthquakes.
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By NASA
3 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
NASA’s X-59 lights up the night sky with its unique Mach diamonds, also known as shock diamonds, during maximum afterburner testing at Lockheed Martin Skunk Works in Palmdale, California. The test demonstrated the engine’s ability to generate the thrust required for supersonic flight, advancing NASA’s Quesst mission.Credit: Lockheed Martin/Gary Tice NASA’s X-59 quiet supersonic research aircraft took another successful step toward flight with the conclusion of a series of engine performance tests.
In preparation for the X-59’s planned first flight this year, NASA and Lockheed Martin successfully completed the aircraft’s engine run tests in January. The engine, a modified F414-GE-100 that powers the aircraft’s flight and integrated subsystems, performed to expectations during three increasingly complicated tests that ran from October through January at contractor Lockheed Martin’s Skunk Works facility in Palmdale, California.
“We have successfully progressed through our engine ground tests as we planned,” said Raymond Castner, X-59 propulsion lead at NASA’s Glenn Research Center in Cleveland. “We had no major showstoppers. We were getting smooth and steady airflow as predicted from wind tunnel testing. We didn’t have any structural or excessive vibration issues. And parts of the engine and aircraft that needed cooling were getting it.”
The tests began with seeing how the aircraft’s hydraulics, electrical, and environmental control systems performed when the engine was powered up but idling. The team then performed throttle checks, bringing the aircraft up to full power and firing its afterburner – an engine component that generates additional thrust – to maximum.
In preparation for the X-59’s planned first flight this year, NASA and Lockheed Martin successfully completed the aircraft’s engine run tests in January. Testing included electrical, hydraulics, and environmental control systems.
Credit: NASA/Lillianne Hammel A third test, throttle snaps, involved moving the throttle swiftly back and forth to validate that the engine responds instantly. The engine produces as much as 22,000 pounds of thrust to achieve a desired cruising speed of Mach 1.4 (925 miles per hour) at an altitude of approximately 55,000 feet.
The X-59’s engine, similar to those aboard the U.S. Navy’s F-18 Super Hornet, is mounted on top of the aircraft to reduce the level of noise reaching the ground. Many features of the X-59, including its 38-foot-long nose, are designed to lower the noise of a sonic boom to that of a mere “thump,” similar to the sound of a car door slamming nearby.
Next steps before first flight will include evaluating the X-59 for potential electromagnetic interference effects, as well as “aluminum bird” testing, during which data will be fed to the aircraft under both normal and failure conditions. A series of taxi tests and other preparations will also take place before the first flight.
The X-59 is the centerpiece of NASA’s Quesst mission, which seeks to solve one of the major barriers to commercial supersonic flight over land by making sonic booms quieter.
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