sci-universe:Astronomer Johannes Kepler was born442 years ago today (27 December) and is commemorate
sci-universe:Astronomer Johannes Kepler was born 442 years ago today (27 December) and is commemorated by GoogleJohannes Kepler (December 27, 1571 – November 15, 1630) was a German mathematician, astronomer and a key figure in the 17th century scientific revolution. His major contribution to science was the discovery that the earth and other planets travel around the sun in an elliptical orbit. He was also the inventor of the Keplerian Telescope, an upgraded version of the refracting telescope. -- source link
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