A plan to send humans to explore an asteroid is losing momentum
The French-led mission that discovered the first rocky extrasolar planet is on its last legs
Reelected, Obama said he plans to ensure that the U.S. is a global leader in research, technology and clean energy. The "fiscal cliff" might even open the door again to carbon tax discussions
A pair of detectors that measure minute distortions in images of distant galaxies will probe the riddle of cosmic acceleration
The past few years have not been the best of times for building observatories. But in a world of budget constraints and schedule delays, the LSST is bucking the trend
The space rock flyby on May 29 was the sixth-closest near-Earth encounter tracked by a telescope
The planet is conveniently close, and an extreme laboratory for atmospheric processes familiar on Earth. So why won't NASA send a mission there?
The budget-busting James Webb Space Telescope could get extra cash from human spaceflight funds