The Mighty Auroras of Jupiter The Jovian cloudscape boasts the most spectacular light show in the solar system. Jupiter’s auroras are hundreds of times more powerful than Earth’s, and they form a glowing ring around each pole that is bigger than our home planet. Revolving outside this auroral oval are the glowing, ‘electric footprints’ of Jupiter’s three largest moons. Nasa’s Juno mission will observe Jupiter’s auroras from above the polar regions, which has never before been possible