The Tunguska Mystery Go from Quantum to Cosmic
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Scientific American June 2008
The Tunguska Mystery
Finding a piece of the elusive cosmic body that devastated a Siberian forest a century ago could help save the earth in the centuries to come
June 30, 1908, 7:14 a.m., central Siberia—Semen Semenov, a local farmer, saw “the sky split in two. Fire appeared high and wide over the forest.... From ... where the fire was, came strong heat.... Then the sky shut closed, and a strong thump sounded, and I was thrown a few yards.... After that such noise came, as if . . . cannons were firing, the earth shook ...”
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