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discovered the circumfrance of the world
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one of the first astronomers leading to years and years of new research and learnings on the universe.
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discovered that the sun is the center of the universe it helps with showing exactly where we are in the universe.
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recorded and discovered the visible orbit of heavenly bodies across the night sky. proves that all the planets are all being pulled by something.
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discovered the laws of planetary motion.
getting to know how the planets go around the sun learning more about gravity -
responsible for discovering an incomplete formula for gravity
learning how gravity works and how it is indeed a thing. -
he discovered the speed of light.
helps us with distance.