The two more commonly believed historical models of the universe include the geocentric model and the heliocentric model. The main difference between these two models is which heavenly body lies at the center of the universe. According to the geocentric model of the universe, the Earth was believed to be the center of the known universe and all the other heavenly bodies were assumed to orbit around our Earth. The heliocentric model, on the other hand, stated that the Sun is at the center of the known universe, with the heavenly bodies orbiting around it.
The geocentric model, also known as the Ptolemaic model, was the commonly believed model of the universe by the Greeks, and this model lasted for a really long time in human history. Nicolaus Copernicus came up with an alternative to the geocentric model, the heliocentric model, in the year 1543.
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Wednesday, June 26, 2013
What is the difference between geocentric and heliocentric model of the universe?
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