Impact of Planetary Rings

[Khairn]

Thanks for the fast replies!

So something being in place for a million years is ephemeral 'eh?

Let me try another angle then. Scientifically speaking ... how would a habitable planet capture enough debris within its roche limit to create a ring(s)? Are we looking at multiple satellites breaking apart, debris gathered from passing comets, part of the moon breaking away when it travelled within the limit, or maybe the solar system passing through some kind of nebula? The amount of solid material in a ring would seem immense (at least to me that is). So with that much material I imagine that some significant event would be needed to give birth to the ring.

With "magic" its easy to come up with something justifiable, but its a little more difficult from a scientific angle.