100 Years Since Tunguska

Today we mark 100 years since the Tunguska explosion that occurred near the Podkamennaya Tunguska River, Russia. The energy blasted from the explosion is estimated to 5 to 30 megatons, with 5 to 15 the most likely. It wiped out an estimated 80 million trees on 2150 squared kilometers. The cause of the explosion, is,…