A rare, recently discovered microbe that survives on very little to eat has been found in two places on Earth: spacecraft clean rooms in Florida and South America.
Scientists from around the world are gathered this week at NASA's Ames Research Center in Moffett Field, Calif., for the second Kepler Science Conference
A witch appears to be screaming out into space in this new image from NASA's Wide-Field Infrared Survey Explorer, or WISE.
The sun has emitted many coronal mass ejections in the week leading up to Oct. 31, 2013, which merged together over time to pass Mars.
Scott Carpenter was one of the icons of NASA's early efforts to explore the new frontier of space.
Newly discovered asteroid 2013 TV135 made a close approach to Earth on Sept. 16, when it came within about 4.2 million miles (6.7 million kilometers).
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.
There is a surprising amount of water bound up in the soil of Mars, according to an analysis done onboard the US space agency's (Nasa) Curiosity rover.
NASA's Curiosity rover is revealing a great deal about Mars, from long-ago processes in its interior to the current interaction between the Martian surface
An international team of scientists using a fleet of orbiting X-ray telescopes has discovered a millisecond pulsar with a dual identity.
This colorful scene is situated in the Noctis Labyrinthus region of Mars, perched high on the Tharsis rise in the upper reaches of the Valles Marineris canyon system.
After almost 9 years in space that included an unprecedented July 4th impact and subsequent flyby of a comet, NASA's Deep Impact mission has ended.
NASA's Voyager 1 spacecraft officially is the first human-made object to venture into interstellar space.
On Friday, Sept. 6, NASA is scheduled to launch a small satellite mission, called the Lunar Atmosphere and Dust Environment Explorer (LADEE)
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