Yes. Deep inside Saturn, probably in the deepest layers of liquid hydrogen and helium, something is causing Saturn to act like a giant magnet. The same sort of thing happens in the hot liquid iron core of Earth. On Earth, this magnetism causes compass needles to align with Earth’s magnetic poles. The north-seeking end of a compass needle used on Earth would actually point toward the south pole at Saturn! The Pioneer 11 and Voyager spacecraft discovered and explored Saturn’s substantial magnetic field. Some of Cassini’s instruments will make a more extensive exploration of Saturn’s magnetic field. The Hubble Space Telescope has observed auroras on Saturn. Auroras are caused when particles streaming from the Sun interact with Saturn’s magnetic field.