Tunguska Event

June 30, 1908 – In a remote corner of Siberia near the Podkamennaya Tunguska River, something cataclysmic happened at 7:17 in the morning of this day.

An awesome blinding fireball roared across the sky and sent a shockwave that knocked everybody within 40 miles off their feet.

The blast is estimated to have been 1000 times bigger than the bomb dropped on Hiroshima.

80 million trees were flattened, fanning outward in a butterfly pattern across over 500 square miles.

Oddly, no crater was ever found, so most scientists believe it was a comet or asteroid (50 miles wide) that blew apart as it entered the atmosphere. The leftover particles would light up night skies around the world for weeks.

It wasn’t until 19 years later that a research expedition led by Leonid Kulik finally reached the site, but they never found any pieces of whatever it was that blew up.

The Tunguska Event is still the largest impact-related atmospheric explosion in recorded history.