Jupiter's Explosive Moon Io Built Its Atmosphere Out of Frozen Volcano Gas

At last, a decades-old mystery has been solved about the atmosphere on Jupiter's volcano-riffic moon Io. This moon, whose super-lavalicious geological situation has earned it the titles "pizza face" and "most volcanically active body in the solar system," is special to the heart of io9 because we love fire. Turns out… »10/15/07 9:16pm10/15/07 9:16pm