Friday November 21, 2008 Updated 8:56 AM PST
For a decade, the National Park Service has known that the 3,000-foot granite cliff hanging over a...
The astronaut who lost her tool bag on a spacewalk admitted Wednesday that she made a mistake by not...

An international team of scientists has reconstructed more than three-quarters of the genome of the woolly mammoth using DNA extracted...
Chronicle 11.20.08 4:00 AM
Space shuttle Endeavour linked with the international space station on Sunday, kicking off a huge home makeover that will allow twice...
Chronicle 11.17.08 4:00 AM
Space shuttle Endeavour's astronauts unfurled a 100-foot, laser-tipped pole and surveyed their ship for any launch damage Saturday...
Chronicle 11.16.08 4:00 AM
The old moon has never looked this good. Mankind's first up-close photos of the lunar landscape have been rescued from four decades of...
Chronicle 11.14.08 4:00 AM
Way out there in the Milky Way, and far beyond our own solar system, astronomers have snapped the first direct photographs of more...
Chronicle 11.13.08 8:28 PM
Despite a nasty Martian dust storm, Spirit lives. NASA had not heard from the 5-year-old Martian rover for four days. Just when...
Chronicle 11.14.08 4:00 AM
The scene across Southern California Thursday looked like an earthquake disaster movie: Children ducked under their desks and held on...
Chronicle 11.14.08 4:00 AM

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