A Russian spacecraft containing 45 mice, 8 gerbils, and 15 newts returned to Earth on Sunday.
A Russian Soyuz spacecraft carrying a crew of three rocketed into orbit today, kicking off a two-day rendezvous with the International Space Station.
Rocket launches aren't just amazing sights for people on Earth. They wow astronauts in space, too.
Has Voyager 1 left our solar system?
A UK-Canadian team of scientists has discovered ancient pockets of water, which have been isolated deep underground for billions of years
More than 10,000 asteroids and comets that can pass near Earth have now been discovered.
The larger of the two moons of Mars, Phobos, passes directly in front of the other, Deimos, in a new series of sky-watching images from NASA's Mars rover Curiosity.
As NASA's Dawn spacecraft travels to its next destination, this mosaic synthesizes some of the best views the spacecraft had of the giant asteroid Vesta.
NASA is preparing the TESS observatory (Transiting Exoplanet Survey Satellite) to follow-up on the successes of the planet-hunting Kepler observatory
The species of bacteria, whose traces were found in probes of water from Lake Vostok, do not belong to any of the 40-plus known subkingdoms of bacteria
The Pentagon says that the U.S. military was ready within a few hours of the terrorist attacks on U.S. outposts in eastern Libya to respond to numerous possibilities, including hostages.
The manual introduces the fundamentals of cyber operations, or "cyber electromagnetic activities" (CEMA), defining terms and identifying important operational factors and constraints.
Kennedy Space Center leaders say they're on schedule for an unmanned test flight next year of Orion, NASA's next vehicle for taking astronauts into space.
Special Forces prepared to fly from Tripoli to Benghazi during the Sept. 11, 2012 attacks was forbidden...
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