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It is estimated that the A Ring contains 7,000–8,000 propellers larger than 0.8 km in size and millions larger than 0.25 km. [4] In April 2014, NASA scientists reported the possible consolidation of a new moon within the A Ring, implying that Saturn's present moons may have formed in a similar process in the past when Saturn's ring system was ...
Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221.; The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies.
The sizes and masses of many of the moons of Jupiter and Saturn are fairly well known due to numerous observations and interactions of the Galileo and Cassini orbiters; however, many of the moons with a radius less than ~100 km, such as Jupiter's Himalia, have far less certain masses. [5]
Scientists finally have a comprehensive view of Titan, Saturn's largest moon. A team of astronomers has created the first global map of Titan by using the Cassini probe's over 100 fly-bys to ...
Explore all 63 of Saturn's verified moons, along with their names and discovery dates. Other moons await official confirmation of their discovery.
Size comparison of Earth, the Moon, and Dione. At 1,122 km (697 mi) in diameter, Dione is the 15th largest moon in the Solar System, and is more massive than all known moons smaller than itself combined. [16] It is also Saturn's fourth-largest moon.
Titan is the largest moon of Saturn and the second-largest in the Solar System.It is the only moon known to have an atmosphere denser than the Earth's and is the only known object in space—other than Earth—on which there is clear evidence that stable bodies of liquid exist.
Size comparison between Mimas (lower left), the Moon (upper left) and Earth. The surface area of Mimas is slightly less than the land area of Spain or California. The low density of Mimas, 1.15 g/cm 3, indicates that it is composed mostly of water ice with only a small amount of rock.