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NAS’s James Webb Space Telescope has captured Neptune’s glowing auroras in the best detail yet. Hints of auroras were first faintly detected in ultraviolet light during a flyby of the Voyager 2 spacecraft in 1989. Webb captured Neptune’s shimmering lights in infrared light, providing direct evidence they exist. NASA released the images on Wednesday, and the results were published in the journal Nature Astronomy. Auroras on any planet occur when electrically charged particles from space enter and collide with molecules in the atmosphere, creating a series of reactions that emits light. On Earth, auroras tend to occur near the polar regions.
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