Russian scientists hopeful of finding traces of cosmic matter left after the explosion.
'We possess a rock from the time of genesis,' announces expert.
Expedition by leading chemistry institute finds area where it fell.
Russian scientists deny theory of respected Italian team by 'proving' that the remote blue lake is older than the famous 1908.
Scientists give startling theory for 1908 Tunguska Event in Siberia which had force of 185 Hiroshima bombs.
Scientists intrigued over 'space rock' found 35 years ago, before being dumped in a geologist's fish tank.
The sensational discovery could lead to a much clearer understanding of a blast which was 1,000 times more powerful than the Hiroshima bomb.
NBC is banning Siberians from watching online trailers and a pilot of its new 'thriller' called 'Siberia'.
When Vadim Kolpakov went on an expedition to the north of Irkutsk region, he had no inkling of the sensational discovery he was about to make.