After 22 months, NASA hears from "lost" spacecraft
Almost two years after a malfunction knocked it off line, NASA's STEREO-B spacecraft has finally phoned home
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Almost two years after a malfunction knocked it off line, NASA's STEREO-B spacecraft has finally phoned home
Astronomers zero in on some of the most mystifying phenomena in the universe
A treasure trove of original NASA images gives an unprecedented view of man's first lunar encounters
NASA scientists have found flowing water, boosting odds that life could exist on the Red Planet
Stunning images of the sixth planet from the sun and its moons from NASA's Cassini spacecraft mission
NASA's Cassini spacecraft captured images that show unique craters and previously unknown features
NASA and the European Space Agency asked pro and amateur astronomers to find the greatest images from the telescope's archives
Here are some images from rovers and spacecraft that have observed the surface of Mars.
Astronomers get clearest picture yet of these celestial enigmas