Liquid methane has been raining down on Titan, say NASA scientists, who have observed the equatorial weather on Saturn's largest moon for the first time.
NASA's Messenger spacecraft is poised to go into orbit around Mercury tonight, after a six-year, five billion-mile journey.
NASA's extended its deal with the Russian Federal Space Agency over transport to the International Space Station - but the cost of a ticket has gone up.
Mars and Jupiter's moon Europa should be NASA's main areas of focus over the coming decade, according to a report from the National Research Council.
A NASA scientist says he's discovered alien life, in the form of microscopic fossils, embedded in meteorites.
NASA believes it's found an explanation for the recent period of decreased solar activity during the sun's 11-year cycle - the deepest solar minimum seen in almost 100 years.
NASA this morning called off the launch of its Glory satellite, five minutes before takeoff. It's been postponed until tomorrow, with NASA citing unspecified technical issues.
The biggest solar flare in four years has blasted out from the sun, and is expected to reach Earth late tonight.
The Stardust spacecraft's Valentine's Day flyby of the Tempel 1 comet has delivered pictures of the comet that clearly show the effects of its last encounter with a spacecraft in 2005.
NASA's much-desired third and final Shuttle flight this year looks likely to go ahead, following the release of its 2012 budget request.
The number of known young stars in the North American Nebula has taken a dramatic jump, with more than 2,000 more having been identified.
Dave Williams of NASA's Goddard Space Flight Center is a man with a mission: to track down hundreds of 'moon trees' grown from seeds that went to the moon and back with the Apollo 14 mission.
Two major rocket companies - ATK and Astrium - are in talks with NASA about a new vehicle which would carry out manned flights to the International Space Station (ISS).
NASA believes it's discovered its first Earth-sized exoplanets - and five of them are in the 'Goldilocks zone' where conditions are considered favorable for life.
A massive scar that appeared in Jupiter's atmosphere last summer was caused by an asteroid 'the size of the Titanic', says NASA.
To the delight of NASA engineers, the NanoSail-D nanosatellite has unfurled its 100-square-foot polymer sail in low-Earth orbit and is operating as planned after a month of inactivity.
NASA is pressing ahead, its fingers crossed, for a third and final shuttle flight this year.
Many types of asteroid could have created the kind of amino acids used by life on Earth to build proteins and regulate chemical reactions, according to new NASA research.
NASA's released images of three commercial aircraft designs that it says could be appearing in the skies by 2025.
A California researcher is urging NASA to (seriously) study the effects of space on human sexual behavior and procreation.