G Whiz! Craft identifies source of faint Saturnian ring

Among Saturn’s shimmering ice belts, the planet’s G ring has proved the most puzzling. The very location of this faint, narrow ring, well beyond the planet’s main ring system, has been a riddle ever since the two Voyager spacecraft spied it in 1980. The G ring lies more than 15,000 kilometers from any Saturnian moon.