Auroras Are Spotted on Neptune for the First Time, and Lead to a New Mystery

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By Robin George Andrews, The New York Times. 

Excerpt: The vermilion, amethyst and jade ribbons of the northern and southern lights are some of Earth’s most distinctive features. But our planet doesn’t have a monopoly on auroras. Scientists have spied them throughout the solar system, ...Mars, Saturn, Jupiter ...some of Jupiter’s fiery and icy moons ...Uranus, too. But auroras around our sun’s most distant planet, Neptune, have long eluded astronomers. That has changed with the powerful infrared instruments aboard the James Webb Space Telescope. In a study published on Wednesday in the journal Nature Astronomy, scientists reveal unique auroras that spill over either side of Neptune’s equator, a contrast with the glowing gossamer seen arcing over other worlds’ poles.. 

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