Cosmos: A Space-Time Odyssey

Season 1 Episode 4

A Sky Full of Ghosts

Aired Sunday 9:00 PM Mar 30, 2014 on FOX
8.4
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Episode Summary

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A Sky Full of Ghosts
AIRED:
A journey back to 1809 features astronomer William Herschel's observations on the effects of light on time and gravity. Also: Tyson travels to the event horizon of a black hole.

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