Sixth-largest moon of Saturn .- Enceladus
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German-born British astronomer and composer.
Other work included an improved determination of the rotation period of Mars, the discovery that the Martian polar caps vary seasonally, the discovery of Titania and Oberon (moons of Uranus) and Enceladus and Mimas (moons of Saturn).
Larger than the planet Mercury.
Particularly notable among Saturn's moons are Titan, the second-largest moon in the Solar System (after Jupiter's Ganymede), with a nitrogen-rich Earth-like atmosphere and a landscape featuring dry river networks and hydrocarbon lakes, Enceladus, which emits jets of gas and dust from its south-polar region, and Iapetus, with its contrasting black and white hemispheres.
Spring characterized by an intermittent discharge of water ejected turbulently and accompanied by steam.
Water vapor jets have been observed near the south pole of Saturn's moon Enceladus, while nitrogen eruptions have been observed on Neptune's moon Triton.
Largest moon of Saturn and the second-largest natural satellite in the Solar System.
The name Titan, and the names of all seven satellites of Saturn then known, came from John Herschel (son of William Herschel, discoverer of two other Saturnian moons, 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.
Fissure on the seafloor from which geothermally heated water discharges.
Active hydrothermal vents are thought to exist on Jupiter's moon Europa and Saturn's moon Enceladus, and it is speculated that ancient hydrothermal vents once existed on Mars.
Type of volcano that erupts volatiles such as water, ammonia or methane into an extremely cold environment that is at or below their freezing point.
In addition, although they are not known to form volcanoes, ice geysers have been observed on Enceladus and potentially Triton.
The Cassini–Huygens space-research mission, commonly called Cassini, involved a collaboration among NASA, the European Space Agency (ESA), and the Italian Space Agency (ASI) to send a space probe to study the planet Saturn and its system, including its rings and natural satellites.
The extension enabled another 155 revolutions around the planet, 54 flybys of Titan and 11 flybys of Enceladus.
The rings of Saturn are the most extensive ring system of any planet in the Solar System.
Like the O2, this atmosphere is produced by the disintegration of water molecules, though in this case the disintegration is done by energetic ions that bombard water molecules ejected by Saturn's moon Enceladus.
Sixth planet from the Sun and the second-largest in the Solar System, after Jupiter.
This variance may be caused by geyser activity on Saturn's moon Enceladus.
Smallest of the four Galilean moons orbiting Jupiter, and the sixth-closest to the planet of all the 80 known moons of Jupiter.
In addition, the Hubble Space Telescope detected water vapor plumes similar to those observed on Saturn's moon Enceladus, which are thought to be caused by erupting cryogeysers.