Here's why:
* Rotation: The Sun spins on its axis, much like Earth does. This rotation takes about 25 days to complete at the equator and is slower near the poles.
* Revolving: While the Sun is the center of our solar system, it doesn't revolve around a larger object. The planets, asteroids, and comets all revolve around the Sun due to its immense gravitational pull.
However, the Sun does move through the Milky Way galaxy. It's part of a spiral arm and takes about 225 to 250 million years to complete one orbit around the galactic center.