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Don Pettit, NASA's oldest active astronaut at 70, arrives in Houston after 7-month space mission (photo)

Advancing Li–CO2 battery performance with photo-energized MoS2/CNT cathodes - EurekAlert!

Hubble Telescope captures gorgeous new view of Milky Way's star-packed galactic neighbor (photo)

Hubble Telescope spies star-forming cocoons in neighboring galaxy (photo)

Wow! Private lunar lander watches 'diamond ring' eclipse from the surface of the moon (photo)

Private Intuitive Machines moon lander declared dead after falling on its side in crater at the lunar south pole

Private Blue Ghost lander spotted on the moon by NASA lunar orbiter (photo)

Sunrise on the moon! Private Blue Ghost lander captures amazing shot after historic lunar touchdown (photo)

Astronomers discover misshapen galaxy is a cosmic predator that bears 'scars' from its last meal (photo)

US Space Force reveals 1st look at secretive X-37B space plane in orbit (photo)

First In-orbit Photo Taken By Secretive Boeing X-37B Spacecraft Officially Released

Hubble Telescope sets its eyes on cosmic cotton candy near the Tarantula Nebula (photo)

Want a workout? Try walking to the top of the world's largest telescope (photo)

Japan's Resilience moon lander aces lunar flyby ahead of historic touchdown try (photo)

Croatia's 1st satellite captures its first views of home (photo)

Japan's Resilience moon lander spots Point Nemo, Earth's remote spacecraft graveyard, from orbit (photo)

Satellites watch world's largest iceberg on crash course with Antarctic penguin island (photo/video)

Aurora alert! Gigantic 500,000-mile 'hole' in the sun's atmosphere could spark impressive northern lights tonight and tomorrow (photo)

Blue Ghost moon lander sees Earth as a 'blue marble' from orbit (photo)

Hubble Telescope spies newborn stars in famous Orion Nebula (photo)