When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. On Friday (Feb. 15), an asteroid half the length of a football field will buzz close by Earth. It ...

In the early morning of June 30, 1908, a massive explosion flattened entire forests in a remote region of Eastern Siberia along the Tunguska River. Curiously, the explosion left no crater, creating a ...

The 1908 Tunguska explosion flattened 2,000 km² of Siberian forest with no crater found, sparking theories from asteroid airburst to gas release or aliens—its cause remains an unsolved mystery. Watch: ...