Mars' largest moon, Phobos, may have been blasted off into space by some catastrophe on the planet's surface, say two different scientific studies.
Space shuttle Discovery is now at the launch pad in preparation for its final flight.
The moon was blitzed by two different sets of asteroids or comets in its youth, according to new results from NASA's Lunar Reconnaissance Orbiter (LRO) spacecraft.
Forget about traveling to another country for vacation! Boeing and Space Adventures have a much more interesting destination in mind for you: the International Space Station (ISS) in low Earth orbit (LEO).
There's been liquid water on the Martian surface throughout the planet's history, measurements by NASA's Phoenix Mars Lander suggest.
Later today, two asteroids will swing so close to the Earth that they pass between us and the orbit of the moon.
In a project reminiscent of Prometheus' theft of fire from the gods, NASA's planning to dive into the sun and capture some of its atmosphere.
NASA has successfully completed a two-minute, full-scale test of its DM-2 rocket motor - despite not knowing for sure whether it will ever actually be going anywhere.
NASA's Kepler telescope has for the first time observed a planetary system with two planets passing in front of their star.
The National Aeronautics and Space Administration has launched a new campaign as its shuttle program dwindles down - the agency is asking for users to submit suggestions for music that will be officially used as the wakeup song for members of the shuttle crew.
The moon has grown smaller in the recent past, and may still be shrinking, new images from NASA's Lunar Reconnaissance Orbiter (LRO) spacecraft reveal.
He doesn't have the same panache as the diaper-wearing crazy astronaut lady Lisa Nowak, but NASA worker Cecil Graham's offense is far worse.
Two space station astronauts are currently conducting their third and possibly final spacewalk to repair the station's faulty cooling system.
Astronomers using NASA's Spitzer Space Telescope have discovered the spherical carbon molecules known as 'buckyballs' in space for the first time.
NASA has published an amazingly detailed map of Mars which was painstakingly rendered using nearly 21,000 images gathered by Odyssey's Thermal Emission Imaging System (THEMIS).
NASA's Wide-field Infrared Survey Explorer, WISE, completed its first survey of the entire sky over the weekend.
Astronomers using NASA's Hubble Space Telescope have confirmed the existence of what they're calling a 'cometary planet' - one that's so close to its star that its heated atmosphere is escaping into space.
The most powerful X-ray blast ever detected from deep space temporarily blinded NASA's Swift space observatory last month.
Seven square miles of a Greenland glacier broke off in two days last week, leaving the calving edge of the ice sheet a mile further inland.
NASA's Cassini spacecraft has discovered a new class of moons in the rings of Saturn that create distinctive propeller-shaped gaps in ring material.