Here's why:
* Gravity: The Sun is much, much larger than Earth and has a much stronger gravitational pull. This pull keeps Earth in its orbit, like a ball on a string being swung around.
* Observation: We can see the movement of the Sun across the sky throughout the day. But this is just an illusion caused by the Earth's rotation.
* Scientific evidence: Through centuries of observations and calculations, astronomers have proven that the Earth orbits the Sun, not the other way around.
It's a common misconception, but understanding how the solar system works helps us appreciate the vastness of space!
