Asteroids - Worlds That Never Were

8.2/10 · 114 votesAug 22, 201242 min

Ranked #3 of 8 in Season 2•+0.1 vs season avg

Discussion

Asteroids wiped out the dinosaurs and may be back for us but they also built the Earth and may have brought life to its barren surface. Asteroids will shape our future as much as our past and scientists are striving to unlock their secrets.

Previous episodeE6 · Comets - Frozen Wanderers Next episodeE8 · Birth of the Earth

Seasons11

All 1 2 3 4 5 6 7 8 9 10 11

Season 2 Episodes8

E1 7.9

Volcanoes - The Furnaces of Life

E2 8.0

Megastorms - The Winds of Creation

E3 8.0

Exoplanets - Planets from Hell

E4 7.9

Megaflares - Cosmic Firestorms

E5 8.1

Extreme Orbits - Clockwork and Creation

E6 8.2

Comets - Frozen Wanderers

E7 8.2Now viewing

Asteroids - Worlds That Never Were

E8 8.5

Birth of the Earth

Cast1

Erik Dellums

Himself - Narrator

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Episode Summary

"Asteroids - Worlds That Never Were" is episode 7 of How the Universe Works season 2. It scored 8.2/10 from 114 votes, ranking #3 of 8 episodes this season (season average 8.1). It aired on August 22, 2012.

Next: E8 · Birth of the Earth Best of Season 2