Geocentric

For many centuries, people tried to understand the structure of the universe using the knowledge and tools available to them at the time. One of the most influential models that shaped early astronomy was the Ptolemaic version of the geocentric theory. This model placed Earth at the center of the universe and explained the movement … Read more

Aristarchus of Samos, an ancient Greek astronomer and mathematician, is often remembered for his revolutionary ideas about the structure of the universe. Living around the third century BCE, Aristarchus proposed a model that contrasted sharply with the dominant geocentric ideas of his time, which placed the Earth at the center of the universe. His work … Read more