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.
Astronomers at NASA are peering ever further away into the universe, and have now discovered their most distant galaxy yet.
Hubble scientists have released a picture of a strange green blob floating near a neighboring spiral galaxy.
NASA's having another shot at regaining communication with the Mars rover Spirit, bogged down in a Martian crater for the last eighteen months.
2012 was the worst science fiction movie ever, say NASA scientists fed up with having to explain that, no, the world isn't really going to end next year.
NASA has found four more cracks in the Discovery shuttle's fuel tank, but says it believes it can repair them in time to launch on February 3 as planned.
NASA is working on a topographic map of the moon showing its mysterious dark side in greater detail than ever before.
Back in May 2010, shortly after it was launched, I wrote a speculative piece about the military's X-37B experimental unmanned craft.
NASA's a little red-faced today, after an inspection showed that a sell-off of thousands of PCs in a fund-raising exercise left it wide open to hackers.
Yesterday, NASA for the first time successfully ejected a nanosatellite from a free-flying microsatellite, marking a big step forward for efforts to clear space junk using solar sails.
NASA scientists have discovered the first known microorganism (GFAJ-1) on Earth capable of reproducing and thriving on a highly toxic chemical known as arsenic.
Rather appropriately for the time of year, NASA's EPOXI team says that the mission's recent encounter with comet Hartley 2 observed a flurry of snow streaming out from the comet.
Scientists are examining the feasibility of constructing hopping vehicles powered by radioactive material to more effectively explore the rugged surface of Mars.