Dione's surface, Cassini image. The brighter area from middle left to upper right is the rim of a crater. Its central peak is a bottom right. Dione ha

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Dione's surface, Cassini image. The brighter area from middle left to upper right is the rim of a crater. Its central peak is a bottom right. Dione has a diameter of 1130 kilometres and is the densest of Saturn's moons. The Cassini-Huygens spacecraft was launched in 1997 to investigate Saturn, its rings and its moons. Image taken by the Cassini spacecraft's narrow-angle camera on 11th October 2005 at a distance of 4,486 kilometres from Dione.

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Photo credit: © NASA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
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Keywords: 11, 2005, 21st, astronomical, astronomy, camera, cassini, cassini-huygens, century, crater, dione, exploration, icy, iv, moon, narrow-angle, october, planetary, rim, saturn, saturnian, science, shepherd, solar, space, spacecraft, system