Look Up: Saturn's Moons. The Cassini spacecraft has been gone for a year now, but the science continues.
The Cassini-Huygens spacecraft revealed vertical formations in some of the rings, with particles piling up in bumps and ridges more than 2 miles 3 km high. Light - NASA: Albiorix 28. Mimas is made up primarily of water-ice, but despite its proximity to the planet and the resulting tidal heating that should occur , the surface of the moon remains unchanged; none of the ice seems to be melting, though such melting occurs on other, more distant moons.
Bestla 40. Saturn was the Roman name for Cronus, the lord of the Titans in Greek mythology.
A recent curiosity may be the giant hexagon circling its north pole, with each of its sides nearly 7,500 miles 12,500 km across — big enough to fit nearly four Earths inside. Images and instruments have confirmed a thick and layered atmosphere of hydrocarbons such as methane. Earth Energy - Geography4Kids: Evidence for Enceladus' water came from two forms.
Astrochemistry - Chem4Kids: While the Earth's atmosphere extends only about 37 miles 60 km into space, Titan's reaches nearly 10 times as far. Enceladus contains more than 100 geysers at its south pole. Kiviuq 17.
Aegir 37. Tarqeq 52.
The innermost is the extremely faint D ring, while the outermost to date, revealed in 2009, could fit a billion Earths within it. Erriapus 10. The smallest and closest orbiting of Saturn's major moons, Mimas cleared the gap known as the Cassini division between two of the planet's rings.
Saturn is big enough to hold more than 760 Earths, and is more massive than any other planet except Jupiter, roughly 95 times Earth's mass. Sixteen of the moons are tidally locked, with one face permanently turned toward Saturn. The Cassini mission revealed a surprising feature emerging at Saturn's northern pole as it nears summertime: Saturn's Spongy Moon , Mimas: Saturn has a magnetic field about 578 times more powerful than Earth's.
Iapetus has a walnut-like shape, with its center bulging outward, and a ridge running around its equator. One of the goals of the mission was to release the Huygens probe that fell through Titan's layered atmosphere and capture images of the surface.