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.

CAPE CANAVERAL, Fla. -- Spacewalking astronauts ventured out for the third time in just over a week Sunday to complete an extensive, tricky cable job at the International Space Station. The advance ...

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

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 ...

NASA astronauts Rick Mastracchio and Steve Swanson are headed outside the International Space Station this morning, on an urgent spacewalk to fix the station's broken backup computer. This spacewalk ...

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.