Saturn's rings are a rainbow of ice scupted into position by gravity. Here's a natural colour 17 megapixel image taken by the Cassini spacecraft. Distances listed are from Saturn's center; the rings are ~5 Earths wide here! Credit: NASA/JPL/Space Sci Inst/CICLOPS
Ring systems may be "temporary" lasting hundreds of millions or billions of years. It's unclear how old Saturn's rings are yet. We are fortunate to have them in our solar system right now, but I do wonder if we missed out on a Jupiter ring system. Full img https://photojournal.jpl.nasa.gov/catalog/PIA11142
How fast do ring particles travel? — https://twitter.com/physicsJ/status/1314567777626157056?s=19
The rings are being eroded slowly, and we think they'll live in their present form for hundreds of millions of years, getting thinner over time (there will always be *some* rings left). This is my actual research by the way, so I'll keep you up to date! — https://twitter.com/physicsJ/status/1088845076007133185?s=19
You can follow @physicsJ.
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