Space Shuttle Science Shows How 1908 Tunguska Explosion Was Caused By A Comet

[Dave Monroe]

Space Shuttle Science Shows How 1908 Tunguska Explosion Was Caused By A Comet

ScienceDaily (June 25, 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.....

http://www.sciencedaily.com/releases/2009/06/090624152941.htm