Astronauts Barry Wilmore and Sunita Williams are headed back to Earth after being stuck at the International Space Station since June.

The delivery of the new spacesuits does not mean that the outfits Orlan-ISS No. 4 and Orlan-ISS No. 5 currently in service aboard the orbital outpost will have to be immediately disposed of, Sergey Po ...

Bone and muscle deterioration, radiation exposure, vision impairment—these are just a few of the challenges space travelers face on long-duration missions, even before considering the psychological ...

Republicans and companies have looked to securities regulators to curb firms that advise shareholders on environmental, ...

NASA's 45-day post-mission rehabilitation program is designed to help astronauts recover from the physical effects of spaceflight ...

Powering spacecraft with solar energy may not seem like a challenge, given how intense the sun's light can feel on Earth.