Studies have revealed that crew members sleep significantly less during spaceflight compared to pre- and post-mission periods ...

For the past five months, NASA astronauts Butch Wilmore, 61, and Sunita Williams, 59, have been stranded aboard the ...

Oxygen has been leaking from a Russian module on the International Space Station for years. NASA and Roskosmos are still not ...

In March, three NASA astronauts were sent to the International Space Station to monitor the arrival of two rockets over six ...

Indian-American astronaut Sunita Williams and fellow astronaut Butch Wilmore have been on the International Space Station ...

"Exposure to the space environment leads to changes related to inflammation, muscle wasting," and more, NASA said.

Stunning footage captured from the International Space Station shows a glorious-looking aurora shimmering above Earth.

Doctors for the space agency are closely monitoring the health and diets of Butch Wilmore, 61, and Sunita Williams, 59, after a recent photo showed Williams looking jarringly gaunt.

Maj. Kate Rubins will be the first Army Reserve officer to receive the Basic Aviation Badge with Astronaut Device and Space ...

The ISS is aging. Zvezda and the PrK launched in July 2000 and will mark a quarter-century in orbit next year. NASA wants to keep the space station operating until at least 2030, while Roscosmos, ...

Astronaut Sunita Williams clears up health speculations regarding her body changes on the ISS. Learn how NASA ensures astronaut well-being and Williams' commitment to her mission in space.

Now, NASA may need to accelerate both of those plans -- because the ISS is leaking. That's bad news for NASA, but it may be ...