Super-volcanoes have probably caused more extinctions than asteroids. Vanderbilt University researchers say such volcanoes could form fairly quickly, in a few hundred years, and erupt without notice.

Gather your supplies! In this episode we will use everyday materials to learn about the formation of volcanoes.

Some scientists think we can better understand volcanoes by learning how the gaseous vortexes emerge. By Carolyn Wilke Some volcanoes perform a rather subtle trick: blowing rings of vapor that ...

A webcam captured a unique sight Tuesday as lava continued to spew from one of the world's most active volcanoes.

Kirt Kempter tells the story of how a volcano created a lava lake, which hardened and then eroded over time to form the canyon.

Scientists mapped the inner workings of a 'zombie volcano.' What they found was telling Scientists say they used satellites and other technology to plumb the inner workings of a Bolivian volcano ...

Two forces of nature merged in a Hawaii volcano when a superheated whirlwind began dancing around a gushing lava fountain, according to the U.S. Geological Survey. The rare sight was recorded Sept. 2 ...