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Terms: copernicus nicolaus
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- Social Studies > Biographies > A B C > Copernicus
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- Copernicus, Nicolaus (Wikipedia.org)
"Nicolaus Copernicus... was a Renaissance mathematician and astronomer who formulated a heliocentric model of the universe which placed the Sun, rather than the Earth, at the center.[a]" 10-13
- Our Galaxy Is Rich in Earth-Sized Planets (CNN News)
"Since the time of Nicolaus Copernicus five centuries ago, people have wondered whether there are other planets like Earth in the universe. Today scientists are closer than ever to an answer -- and it appears to be that the Milky Way galaxy is rich in Earth-sized planets, according to astronomer Dimitar Sasselov." 08-10
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