In Astronomy’s 2022 list of the 20 greatest astronomers of all time, Associate Editor Michael Bakich put Johannes Kepler, born Dec. 27, 1571, in Germany, at No. 3. He was ranked behind only his boss/collaborator, Tycho Brahe, at No. 2, and Galileo in the top slot. Bakich noted: “Kepler’s importance to astronomy is so great Continue reading "Dec. 27, 1571: The birth of Johannes Kepler" The post Dec. 27, 1571: The birth of Johannes Kepler appeared first on Astronomy Magazine .