With his first law of planetary motion, Kepler rejected circular orbits and showed that an ellipse could better explain the observed motions of Mars. Generalized to all planets, it states that the orbit of a planet follows an ellipse with the Sun at one focus.
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Come with us as we explore our Universe! Learn about various celestial bodies including Neutron Stars, White Dwarfs, Black Holes, and more. We visit Mars, and explain the phenomenon of Earthshine. You will even learn all three of Kepler's Laws.