These high-tech buzzers may help astronauts avoid getting lost in space (video)

Returning astronauts to the moon is NASA's biggest challenge, but not its only one: report

Joseph Kerwin was the first American physician to go to space and had the first chance to study space medicine. Ready on Skylab with a minor surgery kit and drugs, a dislocated finger was the most serious ailment any of the three astronauts experienced when he was there

Archive on 4, The Hubble Legacy: Astronaut and artist Nicole Stott celebrates the scientific and cultural legacy of the Hubble Space Telescope with Hubble astronaut Kathy Sullivan, Eric Whitacre, clips from interviews with other astronauts and recently remastered NASA archive recordings.