The April 25th, 1986 disaster in Chernobyl was a turning point in world history. It not only changed our perception of nuclear power and the science that spawned it, but also our understanding of the planets delicate ecology. Photographs of the ravaged moonscapes of Hiroshima and Nagasaki left no doubt about the devastation that could be caused by an atomic bomb. But it took Chernobyl to demonstrate how unstoppable and insidious a massive release of radioactivity from a nuclear power plant could be. With the images of the abandoned homes and playgrounds beyond the barbed wire of the 30-kilometer Exclusion Zone, the rusting graveyards of contaminated trucks and helicopters, the farmland lashed with black rain, the disaster fixed for all time the notion of radiation as an invisible killerone that works slowly over the decades, merciless and indiscriminate, a monstrous force raised by modern science but granted the supernatural powers of ancient myth.