Atlantis lands in California after successful Hubble fix
The space shuttle Atlantis made a picture perfect landing in Calfornia Sunday, nearly two days behind schedule at the end of a successful mission to repair and upgrade the Hubble telescope.
Satellites Destroyed in Orbital Collision
A commercial satellite owned by a U.S. company was destroyed in a collision with a defunct Russian military satellite in what NASA said was the first such accident in orbit, raising new concerns about the dangers of space debris.
GPS Satellite Launches Are Behind Schedule
A government report says the accuracy of GPS signals could deteriorate in the next few years because of delays in satellite launches, but the Air Force says it has plenty of ways of keeping up the navigation system increasingly relied on by drivers and cellphone users.