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COSMOS: A SPACETIME ODYSSEY

Halley's Comet

When will Halley's Comet return to our skies?

The Beginning of Life on Earth
Neil deGrasse Tyson questions how life on earth began.
(00:40)
The Halls of Extinction
Neil deGrasse Tyson welcomes you to explore the Halls of Extinction with him.
(01:13)
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