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Explanation: Enceladus orbits Saturn between the smaller Mimas and the larger Tethys. Enceladus is composed mostly of water ice and has the cleanest and purest ice surface in the Solar System. It's surface therefore appears nearly white. The surface also has many unusual groves and relatively few craters, like Jupiter's moon Ganymede. This indicates that the surface is young and/or newly reformed. To explain this, some astronomers speculate that Enceladus is susceptible to some sort of volcanic activity. Enceladus was originally discovered in 1789 by William Herschel.
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: Saturn
Publications with words: Saturn
See also:
- APOD: 2025 April 30 B A Happy Sky over Bufa Hill in Mexico
- APOD: 2025 February 23 B Saturn in Infrared from Cassini
- APOD: 2024 December 8 B Aurora around Saturns North Pole
- Saturn at Night
- APOD: 2024 August 27 B Moon Eclipses Saturn
- APOD: 2024 June 23 B The Colors of Saturn from Cassini
- A Season of Saturn