Titan (moon)
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Titan is the largest moon of Saturn and the second largest in the Solar System. It is the only moon that is known to have a dense atmosphere, and is the only known object in the Solar System besides E
Titan, imaged by the Cassini orbiter, December 2011. A thick shroud of organic haze permanently obscures Titan's surface from viewing in visible light.
Christiaan Huygens discovered Titan in 1655.
Polar clouds, made of methane, on Titan (left) compared with polar clouds on Earth (right), which are made of water or water ice
Titan's North Pole (2014)
Enceladus
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Enceladus is the sixth-largest moon of Saturn and the 18th largest in the Solar System. It is about 500 kilometres in diameter, about a tenth of that of Saturn's largest moon, Titan. It is covered by
Titan (moon)
…Saturn which were known at the time, came from John Herschel (son of William Herschel, who had discovered two other moons of Saturn, namely Mimas and Enceladus), in his 1847 publication Results of Astronomical Observations Made during the Years 1834, 5, 6, 7, 8, at the Cape of Good Hope. Numerous small moons…
Enceladus imaged by the Cassini orbiter, October 2015
William Herschel, discoverer of Enceladus
Enceladus is Saturn's second smallest moon. It is about one-tenth the diameter then Titan, Saturn's largest moon.
Enceladus orbiting within Saturn's E ring