tunguska

3.18.19

A Meteor More Powerful Than 10 Atomic Bombs Exploded Over the Bering Sea

The December 18 fireball created the biggest airburst since the Chelyabinsk meteor of 2013.

4.17.18

This Huge Asteroid Was Spotted Only One Day Before It Whizzed By Earth

It was the closest miss in recorded history.

1.12.18

This Asteroid Hunter Is Tasked With Saving Earth from Killer Impacts

Lindley Johnson is NASA’s Planetary Defense Officer and in many ways, the fate of the Earth rests in his hands. But he’s not stressed about it.