Fall Tunguska meteor — the most ambitious gallakticheskaya tragedy of the 20th century. Hard to find a more exciting and mysterious event in modern history. With the fall of the Tunguska meteorite associated global changes in the world's history. He is credited with magical characteristics, and consider the product of extraterrestrial intelligence. So what did in fact came over Tunguska June 30, 1908? Why the explosion of a celestial body caused a huge amount of destruction in nature, but did not cause any tangible impact on civilization? Was it a meteor, a comet or an unknown extraterrestrial object? Maybe in unraveling the Tunguska anomalies is the key to the safety of our entire planet.
Cataclysms of earth from space hazards