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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

Peter Ward tells how he was booed at a science fiction convention, and Neville Woolf has a conversat... more

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Interviews

When the Cassini-Huygens mission parted Titan's smoggy veil, it revealed a familiar and yet utterly ... more

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Expeditions

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

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Retrospections

Terraforming was once solely the province of science fiction. Illustrator Thierry Lombry has produce... more

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News Exclusives

In early May, scientists met in Stockholm, Sweden for the first Nordic Astrobiology conference. Thi... more

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Image of the day 07/03/09
Perihelion and Aphelion
Perihelion and Aphelion 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