Astronomers have observed a massive 'superflare' from the Crab Nebula - but are scratching their heads to try to explain it.
A mission to sail the seas of Titan is one of three projects shortlisted by NASA for its next Discovery mission.
Einstein famously pointed out to an admirer that while a thousand experiments couldn't prove him right, a single one could prove him wrong.
Arctic sea ice concentration was at its second-lowest ever in March, according to data from NASA.
A startup company known as Moon Express Inc. has deployed a new app developed by CrowdOptic to give researchers and fanboys an augmented reality experience of shuttle launches.
The launch of space shuttle Endeavour, originally planned for last Friday, will be delayed at least until following the discovery of problems with a heater on a fuel line.
A Florida congrssman has introduced a bill calling for a US manned moon mission by 2022.
Bill Posey's bill - H.R. 1641, the Reasserting American Leadership in Space Act - says that a return to the moon would benefit the country through everything from new technologies to improved natinal security.
This week, the Hubble Space Telescope turned 21! Shots? Well, not for this special birthday.
The European Space Agency (ESA) is currently working with NASA to develop a major Mars exploration project.
What do more than a thousand planet candidates and their suns look like? Jason Rowe, of NASA's Kepler science team has produced an image that shows each of the 1,235 potential planets so far discovered transiting its star.
NASA's released the first picture of the surface of Mercury taken by its Messenger spacecraft early yesterday morning.
NASA's computer network is open to potentially catastrophic hacking attacks across the internet, its inspector general Paul Martin has warned.
NASA says it's abandoned plans for two high-resolution 3D cameras to be carried by the next Mars rover.
Move over CERN: a pattern of X-ray 'stripes' in the remains of a supernova may provide the first direct evidence that supernovae can accelerate particles to energies a hundred times higher than the Large Ladron Collider.
Scientists have been studying how spaceflight makes bacteria more virulent, in work that could have implications for the health of the Earthbound as well as astronauts.
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.