Copernicus

Okay kiddo, let me tell you about someone who lived a long time ago named Copernicus. He was a very smart man who studied the stars in the sky.

People used to think that the Earth was the center of the universe, and that everything else like the Sun, Moon, and stars moved around it. But Copernicus looked at the stars with a special telescope and saw that they were actually moving in a different way.

He thought that maybe the Earth wasn't at the center of the universe after all. He came up with a new idea called the heliocentric model, which means that the Sun is actually at the center of the universe and everything else moves around it, including the Earth.

This was a big idea and it took a long time for people to understand and accept it. But Copernicus had a big impact on astronomy and science, and his ideas helped us understand more about our place in the universe.