Without the need to support body weight, muscles weaken over time, making it difficult for astronauts to walk properly upon returning to Earth. The heart doesn't have to work as hard to pump blood ...

NASA astronaut Don Pettit captured this stunning long-exposure view of Earth and stars from space at night from the ...

like tanning and walking the beach. NASA astronauts aboard the International Space Station may get a great view of the water 250 miles up in the sky, but being that far up isn't always easy.

Two astronauts who ended up aboard the International Space Station for nine months are back on Earth. Follow all the latest ...

They are getting only a small fraction of the exercise we all get from just walking in gravity." Increased risk of cancer due to the heightened levels of radiation that astronauts are exposed to ...

"So, you walk straight and then you turn. And then you walk straight and then you turn." And while astronauts get medical attention from flight surgeons once they return from space, it takes a village ...

Two NASA astronauts have splashed down off the coast of Florida after spending more than nine months stuck in space. Butch Wilmore and Suni Williams waved as they left their capsule - nearly an ...

Click to share on Facebook (Opens in new window) Click to share on Bluesky (Opens in new window) Click to share on X (Opens in new window) NASA astronaut and spacecraft commander Anne McClain ...