Comet Impact
- Episode aired Jun 17, 2009
In 1908 in Tunguska, Siberia, a massive blast flattened 800 square miles of forest and sent a blinding flash round the world. No crater has ever been found, so a new expedition is organised ... Read allIn 1908 in Tunguska, Siberia, a massive blast flattened 800 square miles of forest and sent a blinding flash round the world. No crater has ever been found, so a new expedition is organised to try and find the answer to the mystery.In 1908 in Tunguska, Siberia, a massive blast flattened 800 square miles of forest and sent a blinding flash round the world. No crater has ever been found, so a new expedition is organised to try and find the answer to the mystery.