NASA unveiled a modest telescope on Friday with a sweeping mission — to discover if there are any Earth-type planets orbiting distant stars.
Science editor Alan Boyle's Weblog: Here's your chance to decide which cosmic curiosity will get the star treatment from the Hubble Space Telescope.
The most brilliant of all the constellations dominates our evening sky this week, climbing well up in the south around 9 p.m. local time. It is, of course, Orion, the Hunter. But just exactly who was he?
NASA engineers are scratching their heads over some unexpected behavior from the long-lived Spirit rover, which began its sixth year exploring Mars this month.
The desire to contact intelligent life on other planets is much older than the UFO craze and the SETI movement. Several 19th century scientists contemplated how we might communicate with possible Martians and Venusians.
Science editor Alan Boyle's Weblog: The European Southern Observatory has put together one of the best images ever made of huge jets blasting out from a galactic black hole.
One of the most enduring mysteries stemming from the Apollo moon missions is why rocks brought back to Earth for analysis are magnetized.
One extrasolar planet takes heat waves to the extreme: Within six hours, temperatures on the gas giant can soar by more than 1,000 degrees Fahrenheit (555 degrees C).
Astronomers have figured out how long it takes black holes to stop vibrating after they've been rattled, and as usual, they did it by running a simulation. But instead of a supercomputer, they used a batch of Sony Playstation 3 gaming consoles wired together.
The economic downturn has not dampened rich people's enthusiasm for space tourism, the world's first commercial space flight company says.