Among Kepler’s many other achievements, he provided a new and correct account of how vision occurs; he developed a novel explanation for the behaviour of light in the newly invented telescope; he discovered several new, semiregular polyhedrons; and he offered a new theoretical foundation for astrology while at the same time restricting the domain in which its predictions could be considered reliable.

Johannes Kepler, German astronomer who discovered three major laws of planetary motion. His discoveries turned Nicolaus Copernicus’s Sun-centered system into a dynamic universe, with the Sun actively pushing the planets around in noncircular orbits.

He is best known for formulating the laws of planetary motion, which described the precise movements of planets around the sun. Kepler’s discoveries shattered the prevailing belief in circular orbits and introduced the concept of elliptical orbits, laying the foundation for modern celestial mechanics.

Keplar both discovered the universal laws of planetary motion and explained them correctly. He was the first to correctly explain how the moon creates the tide (which Galileo disputed) and the first to suggest that the Sun rotates around its axis.