A radar instrument aboard a NASA spacecraft has detected large glaciers hidden under rocky debris.
Canada’s space agency awarded a $40-million contract last Friday to the company that operates Radarsat-2...
A pair of spacewalking astronauts float outside the International Space Station to begin repairs.
The shuttle Endeavour crew scanned the ship's wings and heat shield on Saturday, checking for damage.
The U.S. space shuttle Endeavour soared off on a mission to upgrade the International Space Station.
If Sen. Obama wants to abandon NASA's road map to the moon, the space agency's chief wants no part of it.
Space shuttle 'Endeavour's seven astronauts climbed aboard their spaceship for the start of a 15-day mission.
Telescopes on land have caught the first real visual images of multiple planets orbiting another star.
NASA officials have lost touch with the Phoenix Mars Lander and are calling an effective end to its mission.
High-resolution photographs have revealed more recent volcanic activity than previously thought.