Description

De revolutionibus orbium coelestium (On the revolutions of the heavenly spheres), written by Polish astronomer Nicolaus Copernicus (1473–1543) and published just before his death, placed the sun at the center of the universe and argued that the Earth moved across the heavens as one of the planets. Copernicus anticipated his ideas would be controversial and waited more than 30 years to publish his book. De Revolutionibus opens with a brief argument for the heliocentric universe and follows with an extensive set of mathematical proofs and astronomical tables. Copernicus was ...