The smallest rings I have ever seen in Space Engine. They are orbiting the planet only 700 km above the surface, so they must be very young. In the next ten thousands of years they will be destroyed by the tension with the gas molecules of the exosphere
Maybe the teeny tiny rings are secretly ancient orbital constructs left behind by long extinct aliens? At least that's what they could potentially be in future SE releases.
This is also a stealth bump to get rid of the above guys rather obnoxious name from the current forum info (aside from new members, but can't do anything about that).