Russian scientists in bid to solve Tunguska Event Last Updated: 1:18AM BST 02/07/2008 Russian scientists will this week attempt to solve the mystery of a giant explosion 100 years ago that turned night to day across western Europe and flattened a large swathe of Siberia. Trees lay strewn across the Siberian countryside, in 1953, 45 years after an 'unexplained explosion' near Tunguska, Russia A century after reindeer herdsmen saw a column of light that shone with the intensity of the Sun moving across the Siberian dawn sky, the Tunguska Event remains one of the modern era's most abiding scientific riddles....