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After 16 years Copernicus developed a theory that states that the sun is in the center of the universe
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Galileo invented a device that can see far into the universe. He had a craftsman make more than one so he can sell them and have clases on how to use them.
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Galileo dies in Florence, Italy.
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In 1687 Newton publisheda book that was named Mathmatic Principles of Natural Philosophy. Inside the book some of the pages stated his Three laws of Motion and the Law of Universal Gravitation.
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Newton dies on March 31 in London
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Hubble writes a paper that states that there are galaxies outside the Milkyway
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Hubble's law states the greater the distance of a galaxy from ours,the faster it recedes. Proof the universe is expanding.
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A heart attack takes Hubble's life.