Two space missions reached their conclusion: one with a splashdown, the other with a quiet lunar death. And thrilling new ...

As well as a shift in fluid causing their faces to puff, the microgravity in space would have also triggered muscle atrophy, ...

Sunita "Suni" Williams had an unexpectedly long stay at the International Space Station after her capsule malfunctioned.

Astronauts Barry Wilmore and Sunita Williams didn't receive any overtime or holiday pay during their 286-day stint in space.

NASA astronauts are returning to Earth after nine months in space. Experts have said a prolonged period in space can come ...

The astronauts remained stranded at the International Space Station — until Tuesday when they parachuted down to Earth off ...

Butch Wilmore and Suni Williams left the International Space Station after nine months in space, checking out with two other ...

Reuters, the news and media division of Thomson Reuters, is the world’s largest multimedia news provider, reaching billions ...

A four-member crew, including NASA astronauts Sunita "Suni" Williams and Barry "Butch" Wilmore, left the ISS early Tuesday on ...

After nine months on the International Space Station, a total of 286 days in space to be exact, NASA astronauts Sunita ...

The pair of NASA astronauts who have been in space for over nine months returned to Earth on Tuesday after a new crew to ...

Weill Cornell Medicine professor Dr. Christopher Mason and former astronaut Jose M. Hernandez shared their expectations for ...