Cosmos
Famed astrophysicist Neil deGrasse Tyson provides clarity for the vision of the cosmos as he voyages across the universe with never-before-told stories that delve into the scientific concepts of the laws of gravity and the origins of space and time.

Season 1 · Episode 3 ·
When Knowledge Conquered Fear
There was a time, not so long ago, when natural events could only be understood as gestures of divine displeasure. We will witness the moment that all changed; but first, the Ship of the Imagination is in the brooding, frigid realm of the Oort Cloud, where a trillion comets wait. Our Ship takes us on a hair-raising ride, chasing a single comet through its million-year plunge towards the Sun.
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Episode 3 of season 1 of Cosmos: “When Knowledge Conquered Fear”. Aired 2014-03-23. Watch it online free on ZapFlix.