Thirty-six years after the first hints of auroral activity on the ice giant, astronomers have captured Neptune’s aurorae for the first time. Thanks to JWST, the planet’s elusive glow has been measured and it's not the only new insight these observations have delivered.

Using Webb’s near-infrared spectrograph, astronomers have captured new images of Neptune that finally reveal the planet’s mysterious auroral activity. Faint hints of Neptune’s auroras were first detected during Voyager 2’s flyby of the planet, but Webb’s latest discovery is the first direct evidence of the phenomenon.

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