SUMMARY: In this photograph, Cassini is looking through Saturn's rings to see the planet and one of its shepherd moons, Prometheus. The rings are casting a shadow onto the planet, and you can see the narrow, dense regions which are created by gravitational interaction with the shepherd moons. This picture was taken on June 3, 2005, when Cassini was 2.1 million kilometers (1.3 million miles) from Saturn.

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