A new global project will, for the first time, be able to track astrophysical events across the sky as they happen.
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.
Five hundred 'space artifacts' are set for the auctioneer's block later this month - including a Playboy calendar photo that made it to the moon in 1969.
An Indian rocket was deliberately blown up on Christmas Day less than a minute after launch.
According to the New Testament, the guiding light that led the failthful to the birth of baby Jesus was the Star of Bethlehem.
The Apophis asteroid (99942) is expected to pass uncomfortably close to Earth in 2036.
A new study from NASA's Chandra X-ray Observatory could tell us more about how black holes are created - and about the future of the black hole at the heart of our own galaxy.
The world's largest neutrino observatory was completed on Saturday, with the installation of the final string of optical sensors in the IceCube Neutrino Observatory.
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.
Researchers at the University of the Basque Country say they've been monitoring a cyclone on Saturn for more than five years, making it the longest-lasting cyclone ever found on any of the giant planets.
New images from the Hubble Space Telescope show an appropriately festive-looking bubble of gas in our neighbouring galaxy, the Large Magellanic Cloud.
After 33 years' traveling, NASA's Voyager 1 spacecraft has reached the point at the edge of the solar system where the solar wind has died down.
'Citizen scientists' have discovered that a major solar storm is to hit the Earth today.
In the five years since Cassini released images of a bizarre ridge encircling the equator of Saturn's moon Iapetus, astronomers have struggled for an explanation.
The EU has agreed funding for a project to create the largest and fastest man-made craft in history.
It's a long way to go, but it could be worth it: most of the rocks on an odd gas giant 1,200 light years away could be made of diamond, astronomers say.
With the discovery of a fourth giant planet, astronomers are hailing the HR 8799 system as remarkably similar to our own.
A day later than planned, the first test flight and re-entry of a commercial spaceship has been completed successfuly.
Japan's Akatsuki probe has failed to go into orbit around Venus as planned, meaning a six-year wait until another attempt can be made.