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discovered the size of the earth, could help us understand how gravity works
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said earth is center of the solar system was false but helped us realize we aren't the only planet
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believed the sun was the center of the solar system, brought new ideas to the table and inspired Kepler and tycho early 1500s
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discovered that the planets do not travel in a circular shape but a ellipse helped Kepler discover the three laws of planetary motion late 1500s
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discovered the three laws of planetary motion, helped newton discover gravity
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discovered universal gravity, helps us understand why we stay close to the earth and the planets stay close
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discovered the mass and energy equivalence formula, E=mc2, helps us understand speed light late1800s early 1900s