Got 500 years? View one a day and see them all.
On a quiet wing of the University of Texas Medical Branch at Galveston, healthy people spend weeks at a time just lying around.
Bill and Cindy McArthur work together to educate children about living in space.
NASA researchers study astronaut bone loss with a floating treadmill.
High school students and NASA researchers analyze a four-year space experiment.
How can an instrument as small as a postage stamp operate a satellite for decades?
While Astronauts do critical research on the space station, a NASA scientist gets a phone call he doesn't expect.
Talk about a serious high school experiment! A group of teens is helping NASA study materials on the International Space Station.
Flying some 230 miles above the affected areas, the Expedition 10 crew captured snapshots from space of the tsunami's aftermath.
One day, astronauts might travel through the solar system onboard spinning spaceships. Can human brains adapt?
But living in space is bad for bones and muscles accustomed to Earth's constant gravity.
NASA is researching the complex challenge of keeping space travellers safe from radiation.