Studying volcanic eruptions in person can be dangerous, and scientists have died trying. Volcanic lightning -- yes, volcanoes make lightning! -- by contrast offers a safer opportunity to examine what ...

Lightning bolts that flash and clash high above erupting volcanoes can forge flying ash into glass, new research finds. The mechanism could explain the origins of odd microscopic glass beads found ...

Volcanic lightning lashes the eruption cloud over Galunggung, in Indonesia, in this 1984 photo. This discharge of energy creates abundant tiny spheres of melted rock that mix with the ash as it ...

Ball lightning has mystified scientists and witnesses for centuries, appearing as glowing orbs during thunderstorms that seem to defy physics. While thousands of people report seeing these luminous ...