Introduction Kepler's New Astronomy On ProportionRecommended Books

While Copernicus and Galileo often receive the credit in the popular imagination, it was Johannes Kepler (1571-1630) who discovered and demonstrated that the Earth orbits the Sun.  In his 1609 work, Astronomia Nova ("The New Astronomy"), Kepler demolished the Aristotelian cosmography of perfect forms and unknowable causes, forever changed man’s sense of his place in the Universe, helped launch the scientific revolution--and also identified problems which would motivate the development of calculus.  By introducing readers to key steps in Kepler’s process of discovery, this web module aims to inspire individuals to ask new questions and blaze a path towards discoveries of their own.