The Ministry of emergency situations of Russia warns that just about 11 asteroids ranging in size from 7 meters to kilometers can come near to the Earth in the next 35 years. According to reliable information rescue in 2015 approaches with the dangerous cosmic bodies is expected. "Until 2050 is projected 11 encounters with asteroids to distances smaller than the average radius of the lunar orbit (385 thousand km). The sizes of these objects are in the range from 7 to 945 meters", - is told in monitoring the MOE for 2015, published by RIA Novosti. To a large space objects are asteroids whose diameter is more than one kilometre. As was stated by the former Manager of Antistikhia Center Vladislav Bolov, the diameter of the asteroid is of the order of one to two km is considered the threshold for large-scale disaster. The completeness of information about these asteroids is assessed at less than 80%. Relatively smaller objects among other things imply severe threat to Earth because their explosions near the cities as a result of the shock wave and heat can cause significant damage commensurate with the defeat of an atomic explosion. Only by accident decrease in an unpopulated area of the Tunguska meteorite in 1908 did not cause such results. On Earth there are about 120 of a huge asteroid craters in Russia is the largest of them, the Native basin in the North of the Siberian platform. The internal dimensions of the crater is 75 km, 100 km