This even distribution of hydrogen is thought to be key to developing scalable radiation shields for both spacecraft and the ...

Here's what we know about options SpaceX might have to bring the Starliner astronauts home faster from the space station.

When CNN reached out for comment from NASA, the agency shared that “NASA and SpaceX are expeditiously working to safely return the agency’s SpaceX Crew-9 astronauts Suni Williams and Butch ...

After some initial trouble unbolting the balky antenna, the astronauts finally pried it off nearly four hours after popping out the hatch. Mission Control urged them to watch for any floating ...

NASA astronaut Sunita Williams steps out of the ISS after 7 months in space. Over 260 miles above the South Pacific, she replaces a planar reflector and accesses the S0 truss structure to secure ...

CAPE CANAVERAL, Fla. — One of NASA's two stuck astronauts got a much welcomed change of scenery Thursday, stepping out on her first spacewalk since arriving at the International Space Station ...

Cape Canaveral: One of NASA's two stuck astronauts got a much welcomed change of scenery Thursday, stepping out on her first spacewalk since arriving at the International Space Station more than ...

7.5 minutes into today's EVA we'll open things up as you see there, and get ready to traverse out into the vacuum of space. I'm coming out. All right. That's asha Nick Haage wearing the suit with ...