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Carl Sagan's Cosmos | Kepler's Laws of Planetary Motion

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Uploaded on Jun 26, 2010

Kepler's laws gave us an approximate description of planetary motion around stars. This clip is from the episode entitled, Harmony of the Worlds- part of the Cosmos series. Kepler was also known for writing one of the first works of science fiction, about a voyage to the moon. Centuries later modern science triumphed over medieval superstition, and his dream came true.

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