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 ...

NASA astronaut Suni Williams has retired after 27 years of service and a career defined by endurance, leadership, and firsts in space. She spent 608 days in orbit, completed nine spacewalks, and twice ...

The astronauts on NASA and SpaceX's Crew 11 mission are being returned to Earth later this week, according to an update from the space agency. This is the first time a mission on the International ...

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, ...

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.SpaceX guided the capsule to a middle ...

NASA astronaut Suni Williams has retired after a legendary 27-year career that included 608 days in space, nine spacewalks, and two stints commanding the International Space Station.

NASA astronauts Reid Wiseman, Christina Koch and Victor Glover and Canadian astronaut Jeremy Hansen could launch on a trip ...

"It’s been an incredible honor to have served in the Astronaut Office," Williams said in a statement ...

Training is underway for NASA’s newest class of astronaut candidates at the Johnson Space Center in Texas. The nearly ...