Saturn’s rings are sculpted by gravitational resonance

Evidence

Saturn’s rings, on the other hand, are a testament to resonance, a ballet of synchronized motion. As spectacularly documented by the Cassini spacecraft, the rings consist of a huge number of ice and dust particles, some the size of baseballs and larger, others much smaller, organized into myriads of gaps and rings, giving them an unmatched celestial beauty. — Eric J. Heller, Why You Hear What You Hear- An…, 922