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1. Galileo is a scientist who supported the idea of the heliocentric model created by Copernicus.

2. He was the first person to find that Jupiter has four moons.

3. He improved the first telescope made by Hans Lippershey by adding one concave lens and one convex lens instead of two concave lenses.

4.He discovered the sun spots

5.He thought Saturn's rings were planets

6.He discovered lunar mountains and craters

7. he was a professor of mathematics at the university of Padua.

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13y ago

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