- from Space
750L - 890L
Our Sun and the planets that revolve around it are known as the solar system. The Sun is just one of approximately 200 billion stars in the Milky Way galaxy.
Plus, there are billions of other galaxies. There was a time when people thought that Earth was the center of the universe. They believed that the Sun and all the other planets and stars revolved around Earth. Today, we know that’s not true.