Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter. It is a gas giant with a radius of about nine and a half times Earths. It only has one eighth the average density of Earth; however, with its larger volume, Saturn is over 95 times larger.
Saturn's interior is most likely made of a core of iron–nickel and rock . Its core is surrounded by a layer of metallic hydrogen, an intermediate layer of liquid hydrogen and liquid helium, and finally, a outer layer made from gas. Saturn has a pale yellow color because of ammonia crystals in its upper atmosphere. An electrical current within the metallic hydrogen layer might have given Saturn's magnetic field. Saturn's magnetic field strength is around one-twentieth of Jupiter's.