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© Sierra College Astronomy Department

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It was Pythagoras (or his students) who rejected the notion of a flat Earth and embraced the idea of a spherical Earth

His model of the universe had Earth revolving around a “central fire” which could not be seen because it was blocked by a “counter Earth”. The moon and Sun traveled around the central fire.

Ancient Astronomy Pythagoras (c.582-c.500 BC) and his Students

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