Three astronauts touched down in the dark, chilly expanses of central Kazakhstan onboard a Soyuz capsule today after a 125-day stay at the International Space Station.

Two spacewalking astronauts worked on a leaky radiator system outside the International Space Station today, just hours after barely dodging a menacing piece of orbiting junk.

A team of astronauts working inside and out anchored a giant billion-dollar Japanese lab to the international space station today, making it the biggest room there.