Saturn

With the biggest and brightest rings in our Solar System, Saturn was first observed in 1610 by Galileo Galilei. Saturn’s extensive ring system is made of ice and rock, but scientists don’t know how or when they came to be. There have been 60 moons observed orbiting Saturn, and NASA’s Cassini spacecraft has been orbiting the second largest planet in the Solar System since 2004 sending back images showing the detail of Saturn’s small ringlets that form larger rings around the gas giant.

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