NOVA Short| Meet the Volcanoes

In big blockbuster films, all volcanoes look the same: they are huge pointed peaks that violently erupt, destroying everything in their path. While some volcanoes do look like their Hollywood stand-ins, many others do not. In fact, they vary in size, lifespan, and even in the way they erupt. Funding for NOVA is provided by David H. Koch, the Howard Hughes Medical Institute, the Corporation for Public Broadcasting, Lockheed Martin Corporation, and PBS viewers.