A photo from open sources Previously it was believed that not many asteroids that can destroy any city on Earth. Now scientists came to a completely different opinion. So if the era of dinosaurs stopped an asteroid the size of san francisco then to destroy any modern metropolis will need a small pebble, flown from space. As ex-astronaut Ed Lou recently stated, who currently holds the position of head of the B612 Foundation, most people claim that they have nothing to worry about, as large celestial bodies from outer space fly to the Earth once a million years, but in fact they are wrong. It is worth noting that the main the objective of the existence of the Fund B612 is a warning about serious threats from space. So, Ed Lou thinks about once every hundred years, the risk of an asteroid-killer collision with our the planet. Since 2001, organization experts observed 26 explosions capacity of several kilotons that occurred as a result fall of heavenly bodies. Lucky they all came away from settlements. This proves that asteroids quite often become guests of the earth. Moreover, it happens ten times more often, than previously thought. Most likely, the former astronaut is telling the truth. Recall at least last year’s case in the Chelyabinsk region, where a meteorite fell. And although the celestial guest was not very large dimensions – only 17 meters in diameter, however, its power the explosion amounted to 500 kilotons. It is worth noting that the explosion power The atomic bomb in Hiroshima was 30 times smaller.
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