The epic battle waged over dinosaur fossils by rival paleontologists in the American West.
When an earthen dam broke without warning, a small city in Pennsylvania was swept away in a wall of water over 30 feet high.
How do you manage weapons of mass destruction without being destroyed by them?
Her 1963 warnings about the effects of pesticides and herbicides sparked a revolution in environmental policy.
Before radar had been invented a devastating hurricane hit America, surprising residents of the East Coast and killing more than 600 people.
Vivid memories of those trapped in the terrifying temblor of 1906 that killed thousands of Californians.
Native Alaskans, oil company representatives, environmentalists, politicians, and others tell the story of the 800-mile pipeline.
The New Deal program CCC put three million young men to work in camps across America.