
Dinosaurs Saw a Ringless Saturn: Cassini Reveals Rings Are a Recent Arrival
New Cassini-era measurements suggest Saturn’s rings are only tens to a few hundred million years old, far younger than the planet itself, meaning dinosaurs lived during a time when Saturn had no rings; the rings likely formed from a tidally disrupted icy body near Saturn’s Roche limit, though exact age remains debated and could lie anywhere in the tens of millions to a few hundred million-year range.

