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The Tunguska Comet

Topic: Meteorites, Comets and Asteroids | 07/ 04/ 09

In 1908, an object originating from space impacted the Earth and leveled 830 square miles of forest in Siberia. The origins of this object were a mystery until now. With science performed on the space shuttle, researchers have determined that the 1908 Tunguska explosion was caused by a comet.

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Great Debates

At the Astrobiology Science Conference on March 30, scientists and science fiction writers faced off... more

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Interviews

What can the Mars rovers do after reaching Endurance Crater? Principal investigator Steve Squyres ta... more

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Expeditions

Astrobiologists often have compelling adventures in far-flung locations. Charles Cockell, professor... more

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Retrospections

At the Earth System Processes II conference, Dr. Jack Farmer of Arizona State University gave a talk... more

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News Exclusives

With hundreds of extrasolar planets now discovered, one pressing question is how to tell if life res... more

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Image of the day 07/04/09
Mount Rushmore s Starry Night
Mount Rushmore s Starry Night more Images of the Day

Podcasts	08/18/08
	Is All Life Left-Handed? Host Simon Mitton interviews Axel Brandenburg, an astrobiologist at the NORDITA research facility at... more