Biggest asteroid ever to hit Earth? New research shows massive strike in South Africa’s Barberton greenstone belt.

Here’s What Happened When a 23-Mile-Wide Asteroid Hit Earth (Video)

The state of the universe.
April 15 2014 10:24 AM

Boiling Oceans and a Sky on Fire

The surreal scene after a massive asteroid hit Earth 3.26 billion years ago.

New research chronicles a 23-to-36-mile-long asteroid that slammed into Earth about 3.26 billion years ago. The impact had a devastating effect on the planet, triggering a 30-minute-long earthquake, boiling the oceans, and lighting the sky on fire.

Paca Thomas is a regular video contributor to Slate.

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