NASA astronauts Suni Williams and Butch Wilmore completed a spacewalk Thursday while awaiting their delayed return to Earth.

Astronauts Butch Wilmore and Suni Williams are conducting a spacewalk outside the International Space Station to remove ...

Starliner co-pilot Sunita Williams is now the world's most experienced female spacewalker, moving up to number four overall.

Astronaut stuck on International Space Station for months just broke the record for total spacewalk time by a woman - Sunita ...

Astronaut Suni Williams said she's trying to remember what it's like to walk after being stuck in space for almost seven ...

NASA astronauts Butch Wilmore and Suni Williams embarked on a mission that was supposed to last only eight days. However, ...

Breathing New Air Chinese astronauts claim to have created rocket fuel on board the country's Tiangong space station using a ...

Nicole Stott is the latest astronaut to lend her autograph to the Space Hipsters Signature Edition series of "signed" patches ...

So the return of Suni Williams and Butch Wilmore has never been a political story—until this week. And it's a good thing that ...

Astronauts on board China's "heavenly palace" space station have demonstrated a new way of making rocket fuel products and ...

"NASA and SpaceX are expeditiously working to safely return the agency's SpaceX Crew-9 astronauts Suni Williams and Butch ...

Cai Xuzhe and Song Lingdong, part of China's three-person Shenzhou 19 mission, completed an 8.5-hour extravehicular activity ...