colorful outer layers of astronauts' flight suits and spacesuits. Since 2016, the global project has resulted in eight garments, of which four have traveled to and from the station. "The messages ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. NASA’s Suni ...

She has been working in journalism for seven years. Joe Raedle/Getty Astronaut Suni Williams, who has been stuck in space since June, is opening up about some of the things she hasn't done in months.

The hatch is open, and the suits are on battery power ... At the 3 hour and 50 minute mark of today's spacewalk, NASA astronauts Butch Wilmore and Sunny Williams successfully removed the radio ...

NASA astronauts, speaking from space, debunked President Donald Trump’s claims that they had been left behind. Sunita Williams said she and fellow astronaut Butch Wilmore were not stranded on ...

Jumping workouts could help astronauts prevent the type of cartilage damage they are likely to endure during lengthy missions to Mars and the moon, a new Johns Hopkins University study suggests. The ...