Extras

Video thumbnail: NOVA Doomsday Volcanoes - Preview

NOVA

Doomsday Volcanoes - Preview

Could the explosion of Iceland's ticking time bombs cause cold and famine worldwide?

Doomsday Volcanoes - Preview

Video thumbnail: NOVA Meet the Volcanoes

NOVA

Meet the Volcanoes

Volcanoes can come in many shapes and sizes.

Meet the Volcanoes

Video thumbnail: NOVA A Volcanic Labyrinth

NOVA

A Volcanic Labyrinth

See the only place on the Earth where scientists can study a volcano from the inside.

A Volcanic Labyrinth