A New Type of Aurora Found on Saturn Resolves a Planetary Mystery

Earth’s northern and southern lights—the result of a rendezvous between magnetic fields, energized particles from the Sun, and our planet’s atmospheric admixture—are wondrous spectacles. But Earth doesn’t hold a monopoly on auroras. They exist on other worlds with magnetic fields, including Saturn, whose auroral glow shimmers in the infrared and ultraviolet.

Now, as revealed by a recent study published in the journal Geophysical Research Letters, scientists have discovered an aurora on that ringed world that is unlike any other. Like Earth’s, Saturn’s northern lights are fueled by a shower of energized particles from the heavens. But some of its auroras only make

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