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

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

Space Station crew talks with JEKL Institute Denver - an exciting event for the ISS crew we get to see Suni again and ...

Recent pictures of Space Station Commander Sunita Williams from the International Space Station (ISS) had sparked speculation ...

What began as a brief, week-long mission for astronauts Sunita Williams and Butch Wilmore has now extended to 160 days, as Boeing Starliner malfunctions left NASA strategizing for solutions.

"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 ...

Suni Williams and Butch Wilmore, the two NASA astronauts who have been stuck at the International Space Station for more than ...

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

Sunita 'Suni' Williams, 59, has been stranded in space for nearly half a year with her NASA colleague Barry 'Butch' Wilmore, ...

A recent photo of Williams aboard the ISS sparked rumors about her health, restoring the media's habit of prying into the ...

NASA astronaut Sunita Williams is speaking out after a photo provoked concern about her health. She's reassuring everyone ...