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3-12

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Part of NOVA
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Galileo: Sunspots

Galileo used his telescope to gather data about the heavens, and his observations and theories sparked much controversy. Contrary to the popular belief of the time, Galileo suggested that Earth was not the center of the universe. In this video segment adapted from NOVA, the importance of unbiased scientific inquiry is demonstrated by Galileo's observations of sunspots.

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