Add Yahoo as a preferred source to see more of our stories on Google. A NASA astronaut will soon make history when he and one other step outside the International Space Station on the first spacewalk ...

Two astronauts aborted their spacewalk Friday and hurried back into the International Space Station after water leaked into one of the men's helmets in a scary repeat of a near-drowning 2½ years ago.

On 1984, NASA astronaut Bruce McCandless became the first person to go on a spacewalk without a tether. McCandless was ...

CAPE CANAVERAL, Fla. — Astronauts completed their second spacewalk in under a week Wednesday to replace old batteries outside the International Space Station. Commander Chris Cassidy and Bob Behnken ...

NASA is debating whether or not to bring one of the astronauts on the International Space Station early because of a medical issue. The agency did not give specifics of the medical problem or which ...

Update: NASA has postponed the spacewalk due to a "medical concern with a crew member." NASA did not identify the astronaut, nor share details about the medical issue. A new date for the spacewalk has ...

NASA astronauts Mike Fincke and Zena Cardman will conduct the first spacewalk of 2026 on January 8. This will be Fincke's 10th spacewalk, tying the record for a NASA astronaut, and Cardman's first.