The solar system is not a stable and quiet place.

321

The destruction and accumulation of moons and rings is very exciting. It's showing how this system is very rapidly evolving and showing that the processes which led to the formation of the planets (are) still ongoing today.

260

Moons appear and disappear; rings appear and disappear.

239

We don't think that is at all coincidental.

190

This appears to be a random or chaotic process, where there is a continual exchange of energy and angular momentum between the moons.

156

Now we're realizing that planetary systems are continually evolving. They change at a slower rate as they get older, but they continue to change.

110