Which planet is known for having rings?

Saturn is renowned for having the most prominent and extensive ring system of all the planets in our solar system. These rings are made up of countless small particles, primarily composed of water ice, along with some rocky material. The rings of Saturn are visible even with a small telescope, making them one of the most recognizable features in the night sky.

The sheer size and brightness of Saturn's rings make them a significant aspect of its identity compared to the other planets in the choices provided. While Jupiter does have a faint ring system, it is not as well-defined or noticeable as Saturn’s, and neither Earth nor Mars possess rings at all. Therefore, Saturn stands out prominently for its striking rings, which contribute greatly to its reputation as a beautiful planet.