thats no moon
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Cassini Took One Last Look At A Mysterious Glitch In Saturn’s Rings Before It Died
NASA/JPL-Caltech/Space Science Institute Peggy is something along the edge of Saturn’s ring, a glitch whose source we’ve never seen. Cassini took a last peek at Peggy during its Grand Finale destructive plunge, adding a final piece to the puzzle for future researchers to pour over when trying to understand this mysterious disturbance.