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Thursday, December 27, 2012

Today is the birthday of Johannes Kepler, born in 1571 in Germany. As a mathematician, Kepler sought to understand geometric patterns within the orbit of planets. Eventually, in 1605, he realized that one of the simplest explanations could account for the observations:  All planets move in ellipses, with the sun at one focus. What a smart guy he was! 
See: Science News for Kids