Ringed planets are celestial bodies that have prominent rings made of ice, dust, and rocky particles. The most well-known ringed planets in our solar system are Saturn, Jupiter, Uranus, and Neptune. These rings can vary in thickness and composition, with Saturn's rings being the most extensive and visible from Earth. The rings of these planets are formed from debris that orbits the planet, often created by the gravitational pull of its moons or the remnants of comets and asteroids. The rings can be quite dynamic, with gaps and waves caused by the interaction of the particles with the planet's gravity and its moons.