Who Was Nicolaus Copernicus and What Was Copernicus’ Most Influential Contribution To Astronomy?
When Christopher Columbus sailed to the New World in 1492 and proved Earth is a sphere, astronomers started thinking differently about Earth’s place in the universe. For 1,400 years the Ptolemaic system, with Earth at the center of the universe and all other celestial bodies revolving around it in transparent spheres, had remain
