Discovered by Galileo 400 years ago, the rings of Saturn are about the most striking thing astronomers with small telescopes can spot in our solar system.
But even today, experts cannot agree on how or when they formed.
Discovered by Galileo 400 years ago, the rings of Saturn are about the most striking thing astronomers with small telescopes can spot in our solar system.
But even today, experts cannot agree on how or when they formed.