Difference Between Geocentric and Heliocentric

by Abby Cessna August 2, 2009

Want to stay on top of all the space news? Follow @universetoday on Twitter The geocentric model was developed thousands of years ago by Greek philosophers and was the accepted model of the Solar System for centuries. Geocentric actually means earth centered. This model is also called the Ptolemaic system in honor of the Greek […]

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