The space shuttle Atlantis returned back to Cape Canaveral in Florida this morning after its final scheduled mission.
Amateur astronomers say they have found the X-37B in an orbit that takes it over Afghanistan and Iraq. A former Air Force missile officer offers up four possible uses for the space plane – and weapon is least likely.
NASA's twin sun-watching STEREO spacecrafts have tracked a comet as it looped around the sun before impact.
It's official: NASA has declared its Phoenix Mars Lander, which fell silent in November 2008, officially broken.
If the thought of planets, stars, and galaxies excites you, then you'll want to download these astronomy-based iPad apps.
A heavily-oiled bird is seen after being rescued from the waters of Barataria Bay, which are laden with oil from the Deepwater Horizon spill, in Plaquemines Parish, La., on June 26.
The images of these star-nurseries were taken by NASA's Wide-field Infrared Survey Explorer, or WISE, space telescope, which is about three-fourths of the way through it's infrared scan of the entire sky.
A group of amateur skywatchers spotted the US Air Force's secret X-37B space plane orbiting the globe.
Astronauts gave the space shuttle Atlantis's heat shield a final inspection Monday in preparation for their return to Earth.