In a far off region of Siberia, known as Tungunska, an event occurred early in the last century that has caused much debate and quite of bit of conjecture and head-scratching. In 1908, in this remote location, something happened in an ancient forest which leveled 2,150 kilometers of trees. The blast was equal to 10-15 megatons, or 770-1155 Hiroshimas.

Since then, many wild and crazy theories were presented on the cause of such a force. Some speculated that it was a mini-black hole that did it. Some suggested that a UFO crash landed in the middle of the forest. Others even guessed that it was a laser from a planet in the constellation Cygnus. And there were theories on antimatter explosions, government cover-ups, electromagnetic storms, ball lightning, and so on ad nauseum.