FOX NEWS: Tunguska event may have been caused by iron asteroid that went back into space, researchers say

Tunguska event may have been caused by iron asteroid that went back into space, researchers say



The Tunguska event, a seismic blast that rocked a remote Siberian forest more than a century ago, is believed to have been caused by a meteor that exploded before it hit the ground. A new study sheds more light on the asteroid, noting it may have never actually hit Earth at all.