Links for Cosmos: A Spacetime Odyssey S1E4: A Sky Full of Ghosts

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Episode 4

2,686 watches

March 30, 2014
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.
March 30, 2014
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.