Four planets in our solar system have rings: Jupiter, Saturn, Uranus, and Neptune.
While Saturn is most famous for its spectacular and easily visible rings, all four gas giants in our solar system possess ring systems. These ring systems are composed of countless particles ranging in size from tiny dust grains to large boulders, primarily made of ice and rock.
Here's a brief overview of each planet's rings:
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Saturn: Saturn's rings are the most extensive and easily observable. They are made mostly of water ice particles. These rings are incredibly vast, extending hundreds of thousands of kilometers from the planet, but are surprisingly thin – only a few meters thick in most places.
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Jupiter: Jupiter's ring system is faint and composed of dust particles likely originating from impacts on its small inner moons.
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Uranus: Uranus has a set of dark, narrow rings composed of relatively large particles. These rings are thought to be relatively young.
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Neptune: Neptune's rings are faint and clumpy. The clumps are thought to be caused by gravitational interactions with small moons orbiting near the rings.
Therefore, the answer to the question "What planet has rings?" has more than one answer: Jupiter, Saturn, Uranus, and Neptune all possess ring systems.
