Portrait of Nicholas Copernicus
SPL/Photo Researchers
Nicholas Copernicus
Nicholas Copernicus was a Polish asrtonomer who lived between 1473-1543. A long time ago, people believed that the Earth was the center of the universe.
Copernicus changed this belief when he introduced a model of the solar system that was centered around the sun. He claimed that all the planets, including Earth, moved in orbits around the sun.
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