Aurora on Neptune shine along the right side of the planet in Webb's IR images (right). Credit: NASA, ESA, CSA, STScI, Heidi Hammel (AURA), Henrik Melin (Northumbria University), Leigh Fletcher (University of Leicester), Stefanie Milam (NASA-GSFC) Earth isn’t the only world that has aurora. In the past, all the worlds with strong magnetic fields have put on some sort of an auroral display. From Mercury x-ray aurorae that were spotted most recently by BepiColombo, to Jupiter, Saturn, and Uranus’s polar light shows that appear in many different colors, including IR and UV, world after world...