Political humorist Mark Russel once joked, “The scientific theory I like best is that the rings of Saturn are composed entirely of lost airline luggage.” Well, there’s no luggage, it turns out. But a new study appearing in Science based on data from the final orbits last year of NASA’s Cassini spacecraft shows the rings of Saturn — some of the most visually stupendous objects in the universe — are far more chemically complicated than previously was understood.
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