The Massive Mystery of Saturn’s Rings

The Massive Mystery of Saturn’s Rings

Saturn has confounded scientists since Galileo, who found that the planet was “not alone,” as he put it. Around and around they go, held in place by a delicate balance between Saturn’s gravity and their orbiting speed, which pulls them out toward space. Scientists got their best look at the planet nearly 400 years after Galileo’s discovery, using a NASA spacecraft called Cassini.