News From the Field
Space Shuttle Science Shows How 1908 Tunguska Explosion Was Caused By a Comet
June 24, 2009
The mysterious 1908 Tunguska explosion that leveled 830 square miles of Siberian forest was almost certainly caused by a comet entering the Earth's atmosphere, says new Cornell University research. The conclusion is supported by an unlikely source: the exhaust plume from the NASA space shuttle launched a century later.
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