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.


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

It was the closest miss in recorded history.


Could We Actually Nuke an Asteroid to Save Earth?

How to use a human-made Doomsday device to defeat a universe-made Doomsday device.


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.


Watch a Supercomputer's Fever Dream of the Chelyabinsk Asteroid Flameout

Understanding the dynamics of asteroid airbursts will make us better prepared for them.


The Underfunded, Disorganized Plan to Save Earth from the Next Giant Asteroid

Meet the interstellar warriors of Spaceguard.


Space Experts Have Gathered to Save the World From the Threat of Asteroids

Many of the world’s leading space researchers are currently at a conference in Italy discussing how to protect Earth from impacts by asteroids and comets.


Is Earth in Danger Now That Australia Can't Track Comets?

The only place in the Southern Hemisphere that monitored comets and asteroids just got closed down due to a lack of funding. Does that put the planet at risk?


An Asteroid Will Almost Hit the Earth Tonight

And you can watch it whiz by online.


The Most Detailed Analysis Yet of the Flaming Russian Meteor

Even more proof that dash-cam videos offer more than just road rage fails.


Amateur Videos of the Russian Meteorite Actually Helped Science

The Chelyabinsk meteorite was unexpected, but the digital age means we’re always ready to capture something interesting.


What Really Happened in Russia This Morning?

As you've probably heard already, a meteor exploded above the Chelyabinsk region of central Russia earlier today. It injured over 900 people, at least two of them seriously. But what the hell was it? UFOs? A missile test gone wrong? Or... an American...