When Nicolaus Copernicus proposed that Earth was not the center of the universe, he did more than suggest a new arrangement of planets—he ignited one of the most controversial propositions in the history of science. But the Copernican model, which placed the Sun at the center of the solar system with Earth and the other planets orbiting around it, directly challenged more than a thousand years of established astronomical, religious, and philosophical thought. To understand why this idea sparked such fierce resistance, we must examine the world that existed before the heliocentric theory changed humanity’s understanding of its place in the cosmos.
What Was the Copernican Model?
Before Copernicus
