NASA’s Mike Fincke has publicly identified himself as the astronaut who had a concerning “medical event” that led to an early exit from the International Space Station.

NASA’s efforts to get the Artemis II mission off the ground have stalled once again, as engineers navigate a new issue with the rocket set to launch four astronauts around the moon.

UK-based Space Forge wants to create ultra-high-quality crystals in space for the manufacture of semiconductors back on Earth.

The test flight of Boeing’s Starliner capsule — which turned into a monthslong stay in space for two astronauts — was a debacle in the same league as shuttle disasters, NASA said.

NASA’s first crewed moon mission in decades was delayed as its engineers grapple with an all-too-familiar rocket problem: hydrogen leaks. Fixing the issue is even trickier than it may seem.

The four Crew-12 astronauts brought the International Space Station’s staff back to seven after a month of operating with three people on board.

(CNN) — Space junk falling out of orbit and crashing toward Earth is a growing threat. Indeed, old satellites and spacecraft parts reenter our planet’s atmosphere more than three times a day. When ...

(CNN) — There is nothing like the excitement of a rocket launch. I’ll never forget the feeling of being at NASA’s Kennedy Space Center in Florida for the highly anticipated liftoff of the uncrewed ...