Forty years ago, on January 28, 1986, the nation gathered to watch the Space Shuttle Challenger launch, a historic mission carrying the first "teacher in space," Christa McAuliffe. But 73 seconds into ...

An international crew of four astronauts is preparing for a nine-month mission to the International Space Station. The Crew-12 mission has gained urgency as the space station has been understaffed ...

Legendary NASA astronaut Suni Williams, who made headlines after being marooned at the International Space Station for nearly a year, has decided to hang up her space boots for good, the agency ...

Add Yahoo as a preferred source to see more of our stories on Google. For Suni Williams, 608 days in space was enough to call it a career. The 60-year-old NASA astronaut who flew on three missions to ...

NASA’s Mike Fincke has publicly identified himself as the astronaut who had a concerning “medical event” that led to an early exit from the International Space Station.

NASA revealed that astronaut Mike Fincke was the crew member who suffered a medical incident at the International Space ...

NASA astronaut Suni Williams, who famously stayed in space for an extended nine-month visit after problems with an experimental capsule, has retired after 27 years, NASA said Tuesday. Williams retired ...