Here's why:
* Observation: We can see the Sun moving across the sky each day, but this is just an apparent motion caused by the Earth's rotation.
* Scientific Evidence: We have numerous observations and scientific evidence, like:
* Phases of Venus: Venus goes through phases like the Moon, which is only possible if it orbits the Sun.
* Stellar Parallax: Stars appear to shift slightly in position depending on the Earth's position in its orbit around the Sun.
* Kepler's Laws: These laws describe the motion of planets around the Sun, not the other way around.
So, the Earth is a planet that orbits the Sun, and the Sun is a star that does not revolve around any other celestial body.