The true identity of centaurs, the small celestial bodies orbiting the sun between Jupiter and Neptune, is one of the enduring mysteries of astrophysics.
NASA's Hubble Space Telescope has discovered a new moon orbiting the distant blue-green planet Neptune, the 14th known to be circling the giant planet.
Astronomers making visible-light observations with NASA's Hubble Space Telescope have deduced the actual color of a planet
Defying 30 mph gusts and temperatures down to minus 22 F, NASA’s new polar rover recently demonstrated in Greenland that it could operate
Data from Voyager 1, now more than 11 billion miles (18 billion kilometers) from the sun... is closer to becoming the first human-made object to reach interstellar space.
Astronomers using NASA's Hubble Space Telescope have found compelling evidence of a planet forming 7.5 billion miles away from its star
NASA's Hubble Space Telescope will have two opportunities in the next few years to hunt for Earth-sized planets
Now a new creature can be added to that list: large, bright pink slugs.
The radar imagery revealed that 1998 QE2 is a binary asteroid.
Because of GRAIL's findings, spacecraft on missions to other celestial bodies can navigate with greater precision in the future.
NASA's first mission to sample an asteroid is moving ahead into development and testing in preparation for its launch in 2016.
The Apollo-era astronaut says NASA should be working manned Mars missions
A research group at the University of Washington, funded by NASA, is about to build a fusion-powered rocket.
During a year of budget cuts that has the U.S. military freaking out, the Navy is improbably signaling it’ll take major steps forward on developing laser cannons.
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