To the European scientists, this reaffirmed their views of God, and their view that they were the only intelligent life in the cosmos. ... Copernicus was the first to suggest that maybe; just maybe, the Earth was not the center of the Universe. As many of the other cosmologists in that time period, Copernicus was also a religious person, but he had a more open view of things. He decided that there must be a simpler model for how the universe worked, and the heliocentric model gave him exactly that. ... The period between Kepler and modern astronomy can be classified as stage three. ...

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