How did Johannes Kepler’s astronomical discovery differ from the theories of the Greeks and Copernicus? He contradicted their theories regarding the moon’s phases.

He promoted the finding that the earth-sun distance remains constant.

He explained that planets travel in elliptical orbits around the Sun.

He proved that all planetary orbits were circular.

While Copernicus rightly observed that the planets revolve around the Sun, it was Kepler who correctly defined their orbits. ... Using these observations, Kepler found that the orbits of the planets followed three laws.

Explanation:

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