National Geographic Channel Naked Science

Season 7 Episode 7

Expedition Apocalypse

Aired Thursday 8:00 PM Apr 08, 2010 on National Geographic
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Expedition Apocalypse
AIRED:
The famous explosion that took place in Siberia early in the 20th century, known as the Tunguska Event, obliterated everything within thousands of square miles. It was so intense that the skies of Europe were lit for several nights. The debate continues over its cause: meteor, comet, or volcanic gasses?moreless

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