Water vapor spewing from Saturn's moon Enceladus strongly suggests the presence of liquid water below the icy surface.
European nations debated spending 10 billion euros on space at a time when the planet is gripped by economic crisis.
Astronauts aboard the International Space Station tried to revive a urine recycling machine.
Spiders flying as an educational project aboard the International Space Station seem to have gotten the hang of weightlessness.
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.