Air pollution levels in China's notoriously dirty capital were at dangerous levels Saturday, with cloudy skies blocking out visibility and warnings issued for people to remain indoors.

Space & Earth - Environment

Jan 12, 2013 4 / 5 (4) 0

Tens of thousands of tourists, scientists and amateur astronomers who traveled from around the world to see a total solar eclipse in northern Australia may be getting shortchanged by the weather.

Space & Earth - Space Exploration

Nov 13, 2012 not rated yet 0

(AP) -- The launch of five suborbital rockets from Virginia's coast is being rescheduled again.

Space & Earth - Space Exploration

Mar 23, 2012 5 / 5 (1) 0

The farther that human populations live from the equator, the bigger their brains, according to a new study by Oxford University. But it turns out that this is not because they are smarter, but because they ...

Biology - Evolution

Jul 27, 2011 4.7 / 5 (12) 26 |

(AP) -- From the Ganges River in India to remote islands of the Pacific, the sun rose Wednesday only to vanish again, allowing the stars to twinkle into view in the longest total solar eclipse this century ...

Space & Earth - Space Exploration

Jul 22, 2009 5 / 5 (1) 2