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Emily learns that ancient astronomers, such as Ptolemy, created a model of the solar
system based only on what they could see with their eyes. Describe Ptolemy's model
of the solar system and how he came to his conclusions. Then describe Galileo's
model of the solar system. Explain how Galileo proved that his model was correct and
that Ptolemy's was not correct.
sorry i had to label this as physics, there's no astronomy label! 20 points for a good answer. :)
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