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Of Moons and Rings
     17 May 2006
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Rover of the Future

  16 May 2006
 
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Of Moons and Rings 

Saturn's rings appear to spear the planet's moon Titan while a smaller satellite looks on.

Saturn’s A and F rings stretch across the frame in this image taken by the Cassini spacecraft currently studying the moon-rich, ringed planet.

The dark region inside the A ring is known as the Encke Gap, in which Saturn’s tiny moon Pan and several ringlets circle their parent world. Pan is just 16 miles (26 kilometers) in diameter while the Encke Gap spans a distance of about 200 miles (325 kilometers).

The massive, cloud-shrouded moon behind the rings is obviously Titan, a satellite 3,200 miles (5,150 kilometers) wide and larger than the planet Mercury. The smaller moon above Saturn’s ring plane is Epimetheus, a battered satellite only 72 miles (116 kilometers) in diameter.

The Cassini orbiter used its narrow-angle camera to capture this view from a distance of about 415,000 miles (667,000 kilometers) from Epimetheus or 1.1 million miles (1.8 million kilometers) from Titan.

-- SPACE.com Staff

Credit: NASA/JPL/Space Science Institute.

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