Russian scientists hopeful of finding traces of cosmic matter left after the explosion.
A space expert said that the Earth could possibly face another collision with an asteroid as soon as next February.
Russian scientists deny theory of respected Italian team by 'proving' that the remote blue lake is older than the famous 1908.
Expedition by leading chemistry institute finds area where it fell.
Scientists intrigued over 'space rock' found 35 years ago, before being dumped in a geologist's fish tank.
Scientists give startling theory for 1908 Tunguska Event in Siberia which had force of 185 Hiroshima bombs.
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'.
A helicopter carrying ammonite - used to break ice - crashed in Irkutsk region after 'exploding in mid air'.