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

NASA halted a planned spacewalk at the International Space Station because of what it described as a “medical concern” involving one of the astronauts, a reminder that even routine work in orbit can ...

Add Yahoo as a preferred source to see more of our stories on Google. NASA and SpaceX plan to undock the Crew-11 mission from the International Space Station no earlier than 5 p.m. EST Wednesday, ...

NASA astronaut Suni Williams has retired. Williams, along with the now-retired Butch Wilmore, rode on the Boeing Starliner to the space station.

NASA's decision to bring Crew-11 home early marks the first medical evacuation from the International Space Station.

Four astronauts with SpaceX's Crew-11 will return to Earth from the ISS on Wednesday, Jan. 14. This decision to send the astronauts home before their original planned return came after a crew member ...

An ailing astronaut returned to Earth with three others on Thursday, ending their space station mission more than a month early in NASA’s first medical evacuation. “It’s so good to be home,” said NASA ...