Experts are not sure why Neptune's auroras can be seen around the planet's "mid-latitudes," and not the north and south poles

The James Webb Space Telescope identified the lights in the distant planet’s atmosphere, which could not be seen by earlier telescopes or spacecraft.

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.