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Ancient Skies

Celestial Alignment

Astronomer Phil Plait explains how ancient civilizations used the skies to accurately align their buildings to the points of the compass.

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Our Place in the Universe
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54:38
A cast of scientific pioneers reshape our solar system.
Finding the Center
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55:14
Episode two charts our efforts to give the earth shape and place in the cosmos.
Gods and Monsters
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55:15
Explore the earliest origins of our relationship with the skies.
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