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

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

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

During an interview with the New England Sports Network this week, NASA astronaut Suni Williams said, “There’s some rumors ...

NASA and Russia at odds over cause and severity of the International Space Station's leak risks, including possibility of ...

The astronaut originally arrived at the ISS on June 6 along with Sunita Williams for what was supposed to be just a ten day stay.

"In 65 years of human spaceflight, we've never had to bring somebody back for a medical reason so far," he added. "That's a ...

A SpaceX Dragon capsule packed with cargo took flight atop a Falcon 9 rocket Monday night, ferrying innovative experiments and equipment to the International Space Station to continue NASA's legacy of ...

In a video released Monday by NASA, stranded astronaut Sunita Williams, 59, offered a surprising reason for her weight loss ...

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

Sunita Williams clarifies her health status, denying weight loss but detailing body changes from space fluid shifts. Read her ...