The Tunguska explosion was blamed on a meteorite or comet that, experts believe, exploded as low as 5 miles above the ground. Up until now, no one has found a crater or debris that supported this belief.

Marine geologist, Luca Gasperini, and his team may have located the crater about 5 miles north-northwest of the suspected epicenter. Lake Chesko has a strange funnel-shaped bottom that is consistent with craters. Future drilling may resolve a century-old mystery.