Fresh salads may soon be on the menu for astronauts aboard the International Space Station as they try out a new zero-gravity greenhouse.
The space agency is remembering 17 astronauts who died in the Apollo 1, Space Shuttle Challenger, and Columbia disasters.
But now they're home for the holidays -- home at the International Space Station, that is, after a high-stakes repair job clearing the way for reactivation of a critical coolant system.
NASA issues a call for suggestions on ways to study twin astronauts while one is in space and the other is on Earth.
Research into space radiation exposure suggests new risk to long-distance astronauts -- symptoms of dementia.
The commander of the International Space Station shows how crying in space only leads to a big water bubble on your eye.
The International Space Station zips around at 5 miles per second, 230 miles above Earth, but astronauts can still exercise their franchise.
Curious how life changes without gravity? Three astronauts living in the International Space Station will answer those questions and more in a February 22 Google+ Hangout.
China puts its stamp on manned lunar missions, while emphasizing peaceful use of space.
NASA video gives those of us with our feet firmly planted on the ground a look at the Northern Lights from the International Space Station.