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

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.

Following a Friday morning launch, four astronauts aboard a SpaceX Dragon capsule are due to dock with ISS on Saturday afternoon ...

(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. ...

CAPE CANAVERAL, Fla. -- 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 ...

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 ...

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 ...

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 ...