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Johannes Kepler, a German astronomer who lived in the early 17th century, proposed important orbital laws. Kepler's First Law of Planetary Motion states that planets move in elliptical orbits.
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SANTOSH KUMAR
June 21, 2018Johannes Kepler, a German astronomer who lived in the early 17th century, proposed important orbital laws.
Kepler's First Law of Planetary Motion states that planets move in elliptical orbits.