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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Four astronauts have safely returned to Earth after NASA made the rare decision to end their space station mission early because ...

NASA astronaut Mike Fincke revealed that he was the person who experienced a medical issue that led to the crew's early ...

An astronaut in need of medical care has returned to Earth alongside three crewmates, cutting their space station mission short by over a month in NASA's first-ever medical evacuation. The SpaceX ...

NASA astronaut Mike Fincke said he was the crew member whose medical issue prompted the early return of the Crew-11 mission ...

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 ...

LOS ANGELES — 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 ...

Once America's most experienced astronaut, Apollo 13's Jim Lovell, who died at 97, was the first to visit the moon twice.

The Apollo missions changed how scientists understand the moon. Returning with Artemis could help solve some of the biggest lunar mysteries.

Four astronauts have safely returned to Earth after NASA made the rare decision to end their space station mission early because of a medical concern involving one of the crew members. The SpaceX ...