On June 18, 2011, NASA’s Cassini spacecraft successfully completed its second-closest encounter with Saturn’s small moon, the icy Helene.
With an average radius about 9 times larger than the Earth’s, Saturn is the 6th planet from the Sun and the second largest planet in the Solar System, after Jupiter. Saturn is named after the Roman god Saturn, equated to the Greek Cronus (the Titan father of Zeus), the Babylonian Ninurta and the Hindu Shani.
Saturn has 9 rings, consisting mostly of ice particles with a smaller amount of rocky debris and dust. 62 known moons orbit the planet, not counting hundreds of “moonlets” within the rings.