Saturn's rings were discovered by Galileo in 1610 (although he didn't realize what they were). (view from Cassini orbiter, not Galileo's telescope!) notice gaps and different rings |
But in fact all the gas giants have rings: |
notice how thin they are!
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Image of Uranus & rings from Hubble Space Telescope: |
Neptune's rings... |
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...and ring arcs |
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