Johannes Kepler obtained accurate data on the positions of the planets in the sky over time, which Galileo used to prove that planets revolved around the Sun.

Question

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Kepler used the accurate data collected by Tycho Brahe to formulate his laws of planetary motion, which supported the heliocentric model. Galileo's observations, such as those of Jupiter's moons, provided evidence for the heliocentric theory but did not directly use Kepler's data.

Johannes Kepler Obtained Accurate Data on the Positions of the Planets