Webb’s detection of auroras on Neptune is the first time astronomers have captured direct evidence of this phenomenon on the planet. NASA, ESA, CSA, STScI, Heidi Hammel (AURA), Henrik Melin ...

Neptune’s clouds have disappeared. Since the first detailed images of the planet were taken by the Voyager 2 spacecraft in 1989, its cerulean disc has been criss-crossed by wispy white clouds ...

Jupiter has panchromatic tempests. Saturn has glimmering rings. And Neptune has ghostly clouds — at least, it used to. For the first time in three decades, the electric-blue orb is almost ...