NASA has denied rumors that two of its astronauts are losing weight on the ISS, saying they are in outstanding health.

Amid public concern, NASA said the Starliner astronauts and the other five spacefarers living in orbit "undergo routine ...

NASA astronauts Suni Williams and Butch Wilmore say they are working out aboard the International Space Station as they await ...

Two astronauts are doing well despite rumors of health issues as they wait to return to Earth, the astronauts and NASA say.

Suni Williams and Butch Wilmore were only supposed to be on the International Space Station for eight days. It's been 22 ...

Two astronauts were meant to be in space for a week. More than 150 days later, they're still suck in space and speculation ...

It was the best-selling book on the Booker Prize shortlist, outselling all three of the previous winners combined ...

Leaks are affecting a key part of the International Space Station. NASA and Russia’s space agency, Roscosmos, are not seeing ...

Researchers analyzed lunar soil brought back by China's Chang'e-6, the first spacecraft to return with a haul of rocks and ...

The closed ecosystem, housing four zebrafish, demonstrated remarkable success as the fish completed their entire life cycle.

Our watch experts discuss the milestones over the past century that've made Snoopy the most beloved animated character in ...

The agency’s top medical official was responding to rumors that Suni Williams had lost an unusual amount of weight during an ...