On Earth, auroras are caused by the Sun. But on Jupiter, the show is powered by its tiny, violent moon: IO. Io is the most volcanically active body in the solar system. It constantly erupts massive plumes of sulfur and oxygen gas into space. Because Jupiter creates such a powerful magnetic environment, these gases get "ionized" (stripped of electrons) and turn into plasma. This plasma creates a bridge between the moon and the planet. It forms a massive electrical current—called a "flux tube"—tha

5.7K views · 223 reactions | Jupiter: Moons Orbits JAN, 08, 2018...