Caption: "Artist's conception of how ring particles clump together within Saturn's rings based on conclusions from the Cassini spacecraft (1997--2017)." (Slightly edited.)

As we know, Saturn's rings are a very special class of planetary rings.

Most planetary rings are dark rings.

Saturn's rings may formed from a tidal force break up of an icy moon that spiraled in to close or an impactor shattered an icy moon of Saturn and the rings are the debris (HI-212).

Credit/Permission: NASA/Jet Propulsion Laboratory (JPL)-Univer sity of Colorado at Boulder 2007 (uploaded to Wikipedia by User:DragonFire1024, 2007) Public domain.
Image link: Wikipedia: File:Saturn Ring Material.jpg.
Local file: local link: saturn_rings_artist_conception.html.
File: Saturn file: saturn_rings_artist_conception.html.