Here's a breakdown:
* The Sun: The Sun is at the center of our solar system and its gravity holds all the planets in orbit around it. The Sun itself is also rotating, completing a full rotation in about 25 days.
* The Moon: The Moon orbits the Earth, held in place by Earth's gravity. It takes about 27.3 days for the Moon to complete one orbit.
What appears as movement from Earth:
* The Sun: We see the Sun "moving" across the sky because the Earth rotates on its axis. As the Earth spins, we face different parts of the sky, making it appear like the Sun is traveling across the sky.
* The Moon: The Moon appears to move across the sky for the same reason as the Sun - Earth's rotation. Additionally, we also see the Moon move through its phases (new moon, waxing crescent, full moon, etc.) because its position relative to the Sun and Earth changes as it orbits.
In short:
* The Sun and Moon don't move on their own, but are held in place by the forces of gravity.
* We see them "move" because of Earth's rotation and the Moon's orbit around Earth.
Let me know if you'd like to know more about any of these concepts!
