Answer:
Aristarchus explained that Sun is the center of solar system whie others thought that earth is the center of the solar system.
Explanation:
The ancient Greeks, thought that the Earth was in the center of heavenly bodies and everything revolves around it all (geocentric). But not every Greek believed that the Earth was in the middle such as Aristarchus of Samos, was the first known person to say that the Sun was in the center of the universe. He proposed this in the third century BCE.
