Papers Copernicus, Nicolaus (Artzia.com) "His theory about the Sun as the center of the solar system, turning over the traditional geocentric theory (that wanted the Earth to be its central star), is considered one of the most important discoveries ever, and is the fundamental starting point of modern astronomy." 10-04 Copernicus, Nicolaus (Discovery.com) Provides a picture and a short biography of the astronomer. 3-02

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