A volcanologist answers your questions about glass-shard hairballs, cooking breakfast over lava, Gollum's end on Mount Doom, ...

Where Volcanoes Are Born Most volcanoes form at the boundaries of Earth's tectonic plates, which are huge slabs of crust and ...

High above the shores of ancient Sicily, where the sky often glows with soft red light, people once believed a powerful fire ...

A 1956 eruption collapsed much of the Bezymianny volcano in Kamchatka, Russia, but frequent eruptions since — including a ...