Two volcanic eruptions (shown in blue) on Io, a moon of Jupiter, photographed by Voyager 2 in 1979.
Photo: Courtesy of NASA/JPL/Caltech.
Article: Mountains of Fire | Sidebar One: Volcanoes of North America | Sidebar Two: Montserrat | Sidebar Three: Other Planets | ANIMATION
Hell's Crust: Our Everchanging Planet | The Restless Planet: Earthquakes
Out of the Inferno: Volcanoes | Waves of Destruction: Tsunamis
