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What did Nicolaus Copernicus discover?

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Nicolaus Copernicus was a Polish scientist who is credited with the early 16th-century discovery that the sun is the center of the universe and that Earth and several other planets orbit it. Copernicus' discovery, which subsequent astronomers expanded on, has become known as the heliocentric solar system.

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Copernicus' theory was a drastic adjustment to the previous geocentric model, which suggested that the sun and all other planets and stars orbited the Earth. The astronomer also proposed theories on the motion of different planets and stars. He published his findings, which were all based on his naked eye observations, in 1514.

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  • Q:

    What nationality was Nicolaus Copernicus?

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    Although he had a German heritage, Nicolaus Copernicus was born in Poland. Torun, the city in which he was born, had become an official part of Poland by the time of his birth. However, German was his primary language.

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  • Q:

    What did Nicholas Copernicus discover?

    A:

    Nicolas Copernicus was a Polish astronomer who discovered that the Earth and other planets revolve around the sun. This heliocentric system replaced the prevailing theory that the Earth was the center of the universe and the sun revolved around it.

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  • Q:

    Why did people once believe that Earth was the center of the Universe?

    A:

    The belief of early astronomers that the Earth was the center of the universe stemmed from limited astronomical tools and geocentric attitudes. The Ptolemaic Model, developed around 100 A.D., presented the Earth-centered solar system in which most early Roman astronomers believed.

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  • Q:

    What is the no boundary universe theory?

    A:

    The no boundary theory of the universe likens the universe to the Earth, in that is impossible to find any boundaries traveling around the Earth or to fall off it. This is possible as a result of theorizing that prior to the Big Bang, the generally accepted laws of physics did not apply and that the concept of time as we know it did not exist.

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