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He spoted the rings of Saturn and made observations upon planet movements along with the phases of the moon and surface of the moon

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13y ago

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Galileo discovered the four largest moons of Jupiter, now known as the Galilean moons: Io, Europa, Ganymede, and Callisto. He also observed the phases of Venus, providing evidence for the heliocentric model of the solar system proposed by Copernicus.

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9mo ago
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Q: What are two discoveries Galilee made by using his telescopes?
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