Underneath a starry night sky, the city lights of New Delhi, India, and its surrounding suburbs glitter below Earth’s atmospheric glow and at the edge of the Himalayas. This photograph was taken at approximately 2:55 a.m. local time as the International Space Station orbited 260 miles above.NASA The Expedition 73 crew members explored how exercise [...]
NASA/James Blair NASA’s 2025 astronaut candidate class greets the crowd in this Sept. 22, 2025, image. The group was introduced Monday following a competitive selection process of more than 8,000 applicants from across the United States. The class now will complete nearly two years of training before becoming eligible for flight assignments supporting future science [...]
Photo of the Day How massive can a normal star be? Estimates made from distance, brightness and standard solar models had given one star in the open cluster Pismis 24 over 200 times the mass of our Sun, making it one of the most massive stars known. This star is the brightest object located [...]
Background The NASA Engineering and Safety Center (NESC) has reviewed flight, ground test, and published data on ultraviolet-induced degradation of silicone based thermal control coatings. Analysis has shown, for at least one silicone coating, that bake-out plays an important role in ultraviolet (UV) degradation, indicating that UV interaction with paint volatiles, and not the structural [...]
NASA astronauts Zena Cardman and Jonny Kim practice Canadarm2 robotic arm maneuvers on the Destiny laboratory module’s robotics workstation. Kim commanded the Canadarm2 two days later to capture Northrop Grumman’s Cygnus XL cargo craft with Cardman backing him up as the spacecraft arrived at the International Space Station.NASA Expedition 73 kicked off the week with [...]
Lettuce Find Healthy Space Food! Citizen Scientists Study Space Salads Volunteer members of the OSDR-Analysis Working Groups examined the nutritional quality of crops grown in Low Earth Orbit and the physiological effects of space-induced nutrient deficiencies on astronauts. You can join the team here! Credit: npj Microgravity/Barbero et al., 2025 Missions to the Moon and [...]
IC 348 is a star-forming region in our Milky Way galaxy.X-ray: NASA/CXC/SAO; Infrared: NASA/ESA/CSA/STScI; Image Processing: NASA/CXC/SAO/J. Major Data from NASA’s Chandra X-ray Observatory and NASA’s James Webb Space Telescope combine to reveal an otherworldly view of the star-forming region IC 348. In this image released on July 23, 2025, X-rays from Chandra are red, [...]
La NASA anunció su promoción de candidatos a astronautas de 2025 el 22 de septiembre de 2025. Los diez candidatos, que aparecen aquí en el Centro Espacial Johnson de la NASA en Houston, son: el suboficial mayor de 3.ª clase del Ejército de los Estados Unidos Ben Bailey, el mayor de la Fuerza Aérea de [...]
NASA announced its 2025 Astronaut Candidate Class on Sept. 22, 2025. The 10 candidates, pictured here at NASA’s Johnson Space Center in Houston are: U.S. Army CW3 Ben Bailey, U.S. Air Force Maj. Cameron Jones, Katherine Spies, Anna Menon, U.S. Navy Lt. Cmdr. Erin Overcash, U.S. Air Force Maj. Adam Fuhrmann, Dr. Lauren Edgar, Yuri [...]
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