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

The astronaut appeared to be in good health and spirits following photos of her that recently sparked health scare rumors.

"All NASA astronauts aboard the International Space Station are in good health," says the agency's chief health and medical ...

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

NASA astronaut Suni Williams says her weight is stable aboard the International Space Station, rebutting tabloid claims that ...

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

With regard to speculation about Wilmore, The New York Post published an article today titled "NASA monitoring second ...

Astronauts face a large number of other health risks during their stay in space. In a weightless environment, muscles aren't used as much, which can lead to them weakening and atrophying. Additionally ...

None of this was anticipated. They were supposed to be there for a week, and now it’s going on six months,” a source told The ...

NASA astronaut Sunita 'Suni' Williams, who is stranded in space until 2025, has spoken out after new photos onboard the ISS ...