Jupiter's third moon, Io

Io, one of Jupiter's largest moons, is the most geologically active body in our solar system. It's covered in over 400 active volcanoes, some spewing lava hundreds of kilometers high. Io's surface is dotted with lakes of molten sulfur, giving it a colorful, patchwork appearance. This intense volcanic activity is driven by tidal heating, caused by gravitational interactions with Jupiter and neighboring moons. Despite its harsh environment, Io plays a crucial role in Jupiter's magnetosphere. Its constant eruptions replenish a thin atmosphere and create a torus of plasma around Jupiter. Io's dynamic and extreme nature continues to intrigue scientists and space enthusiasts alike.