How the Universe Works - Season 3 - Eps 6: Weapons of Mass Extinction
Asteroids strike, planets collide, black holes blast out death rays, volcanoes erupt and ice engulfs the planet. These are the universe’s weapons of extinction. They’ve happened before - wiping out entire species, and they will happen again. Are we next?
About How the Universe Works

Title: How the Universe Works
First Air Date: 2010-04-25
Last Air Date: 2023-04-02
Status: Returning Series
Rating: 8.2/10 (from 111 votes)
Language: EN
Seasons: 12
Total Episodes: 93
Network: Science Discovery
Genres: Documentary
Production Companies: Discovery
Synopsis
A users' guide to the cosmos, from the Big Bang to galaxies, stars, planets and moons: where did it all come from and how does it all fit together? A primer for anyone who has ever looked up at the night sky and wondered.