In this model, the Earth is placed at the center of the universe, and the other celestial bodies (Sun, Moon, planets, stars) revolve around it in concentric spheres.
Here's how it worked:
* Earth: At the very center.
* Moon: Revolves around Earth in the first sphere.
* Mercury, Venus, Sun, Mars: Revolve in subsequent spheres, each larger than the previous one.
* Outermost spheres: Hold the fixed stars, which are thought to be attached to a crystalline sphere.
This model was the dominant view of the universe for centuries, first proposed by ancient Greek philosophers like Aristotle and Ptolemy.
However, the heliocentric model, which places the Sun at the center of the solar system, was later proposed by Nicolaus Copernicus and ultimately proved correct.
