Nova: Volcano Under the City
A team of scientists clambers down into the steep crater of an active volcano in central Africa, a lake of molten lava seething far below. The team's mission is to explore this deadly mountain up close to find out when and why it is likely to erupt next. the lives of half a million people living directly in its shadow are at stake. In January 2002, the ground close to the city of Goma in the Democratic Republic of Congo spl...