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Planetary Motion: Brahe, Kepler & Galileo
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Geocentric and Heliocentric models of the universe
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Moon vs. Earth vs. Sun Revolution
How can Planets be in Retrograde? Geocentrism Explained
ASTR 101OL - Week 2 - Chapter 2 Part 2 - Heliocentrism
How the Geocentric Universe Works with Modern Physics
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Geocentrism vs. Heliocentrism
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The Kepler Revolutions
Astronomy 101: Heliocentric Models
Motion of Astronomical Bodies Part 1 (ASTR 161)
Astronomy 101: Geocentric Models
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Geocentric and Heliocentric Models of Solar System
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Chapter 2 — The Copernican Revolution