For the 1st time in the history of the International Space Station, an astronaut experienced a health issue that required NASA to end a mission early.

Add Yahoo as a preferred source to see more of our stories on Google. An astronaut in need of medical care has departed the International Space Station (ISS) with three crewmates in Nasa’s first-ever medical evacuation. The four returning astronauts, who ...

Four new crew members are on their way to the International Space Station after launching into orbit early Friday morning

Former NASA astronaut Mike Massimino joins TODAY to give context and provide insight into the unprecedented evacuation of Crew-11 from space after a medical emergency. Massimino discusses what might have forced the return of the crew, the next steps for ...

The four Crew-12 astronauts brought the International Space Station’s staff back to seven after a month of operating with three people on board.

NASA returned Crew-11 early after a medical issue onboard the ISS. Here's the latest, as the astronauts returned to Houston.

(CNN) — Four astronauts aboard a SpaceX Crew Dragon capsule splashed down early Thursday in the Pacific Ocean, ending a weeklong effort to get an unnamed crew member home to evaluate a medical issue. “NASA was ready. The team responded quickly and ...

The Artemis II mission, which will return US astronauts to lunar space, has run into problems that have critics demanding NASA remove the crew from the flight for safety reasons. The bigger question is,

Spending time in the weightless environment of microgravity can have some dramatic effects on the human body, but scientists have recently discovered a new one that could help explain why some astronauts struggle to adjust after returning to Earth.

A quick trip in June to the International Space Station stretched into an unexpectedly lengthy orbital stay for the two NASA astronauts who crewed the Boeing Starliner for a flight test. For the past 10 months, news and speculation about the ill-fated ...