All planets in the Solar System orbit the Sun.

The story behind the answer

True. The Sun’s immense gravity—holding about 99.8% of the Solar System’s mass—pulls all planets into stable, elliptical orbits, as described by Kepler’s laws and explained by Newton’s gravity. Technically, planets orbit the Solar System’s barycenter (center of mass), which usually lies inside the Sun; for massive Jupiter, it can lie just outside the Sun’s surface, but the system still effectively revolves around the Sun.

Context and memory tip: The heliocentric model (helios = Sun) championed by Copernicus, supported by Galileo’s observations, and quantified by Kepler and Newton, replaced the old Earth-centered view. Remember: planets orbit the Sun; moons orbit planets. Visualize the Sun as the system’s “anchor,” with Mercury through Neptune as rings in a gravitational whirlpool, keeping their places thanks to the balance between forward motion and the Sun’s pull.