Tethys (moon)
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Tethys is the fifth-largest moon of Saturn, measuring about 1,060 km across. It was discovered by Giovanni Domenico Cassini in 1684, and is named after the titan Tethys of Greek mythology.
Giovanni Domenico Cassini, discoverer of Tethys
Tethys – Red Arcs (11 April 2015)
Cassini view of Tethys's Saturn-facing hemisphere, showing the giant rift Ithaca Chasma, crater Telemachus at top, and smooth plains at right
Huge, shallow crater Odysseus, with its uplifted central complex, the Scheria Montes, is at the top of this image.
Natural satellite
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A natural satellite is, in the most common usage, an astronomical body that orbits a planet, dwarf planet, or small Solar System body. Natural satellites are colloquially referred to as moons, by anal
Size comparison of Earth and the Moon
Artist impression of Rhea's proposed rings
Jupiter family
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