NASA's Fermi Gamma-ray Space Telescope has made the first unambiguous detection of high-energy gamma-rays from an enigmatic binary system known as Cygnus X-3. The system pairs a hot, massive star with a compact object -- either a neutron star or a black hole -- that blasts twin radio-emitting jets of matter into space at more than half the speed of ...

Favourable weather conditions awaited the shuttle Atlantis and its seven-astronaut crew on their expected return to Earth on Friday, after a successful 11-day mission to the International Space Station.

China is set to launch its second lunar probe next October in preparation for an unmanned moon landing by the end of 2012, space program officials said Friday.

Former astronaut Fred Haise Jr. will receive NASA's Ambassador of Exploration Award during a ceremony Dec.

Troops belonging to the Able Troop 3-71 Cavalry Squadron stand in line at the mess hall to get their Thanksgiving dinner at the Joint Combat Operations Post in the town of Baraki-Barak district, Logar province, Afghanistan Thursday Nov.

Students at a northern Virginia school have made a trip to space - at least by name, that is.

A top Russian space official says there is no space for tourists wishing to fly to the International Space Station.

Space shuttle Atlantis and its seven-member crew are expected to return to Earth on Friday, Nov.

This blue-collar suburb on the edge of Los Angeles once helped send men to space.

A solar tsunami seen by the twin STEREO spacecraft. Movies like this have helped convince scientists that this phenomenon is real, and not a visual illusion.

In the chronicles of UFO oddness, there's been a long-standing oddity a ' some say folklore, others deem it reality.

NASA said there was another false fire alarm Tuesday morning aboard the International Space Station -- the third such false alarm during the STS-129 mission.

NASA Administrator Charles Bolden will present astronaut Fred Haise, Jr., with NASA's Ambassador of Exploration Award during a ceremony on Wednesday, Dec.

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Canadian astronaut Bob Thirsk admits, to his surprise, that living on board the International Space Station for the past six months hasn't been all that stressful.

Brown dwarfs are misfits because they fall somewhere between planets and stars in terms of their temperature and mass.

The astronauts aboard the orbiting shuttle-station complex are resting after their three successful spacewalks.

NASA has selected for development 368 small business innovation projects that include research to minimize aging of aircraft, new techniques for suppressing fires on spacecraft and advanced transmitters for deep space communications.

An Astronaut currently in space became a new dad.

A pair of astronauts zipped through the third and final spacewalk of their mission Monday, installing an enormous oxygen tank at the International Space Station and accomplishing everything else on their list.