O Thick Wits, O Blind Watchers of the Sky

Everything changed right around the time of Johannes Kepler. Comets, against millennia of prior belief, were then discovered to be farther away than the moon. Aristotelian spheres had been shattered. Kepler’s Astronomia Nova announced his first two laws of planetary motion. 1: Planets moved in elliptical orbits. 2: Lines from the sun to each planet […]