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.

Scientists suspected the ice giant hosted auroras—and had already observed them on Jupiter, Saturn and Uranus. But an observation of Neptune's lights remained elusive for decades

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.