Season 1 Episodes8
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Jim Al-Khalili
Narrator
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Ranked #6 of 8 in Season 1•−0.1 vs season avg
Our solar system is home to many wanderers, the asteroids and comets. This is a journey into deep space to visit objects that have endured unimaginable periods of time, waiting to reveal the origins of the solar system and therefore, us.

Jim Al-Khalili
Narrator
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"Asteroids & Comets" is episode 5 of Secrets of the Solar System season 1. It scored 8.4/10 from 20 votes, ranking #6 of 8 episodes this season (season average 8.5). It aired on February 14, 2020.