Roger Stokes wrote:

"David Harper" wrote in message
om...
"Jo & MickD" wrote in message
...
Why do the rings on Saturn look so perfect ie have perfect looking gaps
around them.
How does this actually happen or work?????????

Gravitational resonance with Saturn's other moons is one of the
primary factors. So something breaks up in Saturn's orbit. For
millions of years you have just a nebulous debris ring. Over time,
debris is tugged on by Saturn's moons, which orbit it in regular
intervals. Over time, the debris particles reach equilibrium orbits
due to this tugging as well as impacts with other debris.


Has Saturn always had rings, or do we just live in a period when something
"broke up" a few million years ago?

Are Saturn's rings slowly depleting due to collisions and radiation
pressure?

Could all the gas giants possess massive rings from time to time?

All the gas giants do have rings, they just vary in scope.