In 1908, in the middle of the Siberian wilderness, near the Tunguska River, an explosion took place which was equivalent in size to the detonation of a 5 megaton nuclear bomb.

But it wasn’t a nuclear bomb. Such things didn’t even exist then. It was a mystery that scientists are still trying to figure out today.

Learn more about the Tunguska Event on this episode of Everything Everywhere Daily.
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