The document compares the geocentric and heliocentric models of the universe. The geocentric model, developed by ancient Greek and Roman astronomers, placed Earth at the center with all other objects orbiting around it. The heliocentric model, proposed by Copernicus during the Scientific Revolution, correctly placed the Sun at the center with Earth and other planets orbiting around it. While the geocentric model was developed early on, the heliocentric model provides a more accurate description of the motions in our solar system.