Pravda
Wednesday 20th February, 2013
“The most significant manifestation of this kind of celestial objects that has ever been observed by man, was the fall of the so-called Tunguska meteorite. However, even after the fall of such a large object, there were no fragments of the meteorite found on the ground because it actually was not solid. It was a concentration of gas and ice-like substances that exploded in Earth’s atmosphere. However, the destruction of that meteorite produced a strong blast wave. The phenomenon that we could observe in Chelyabinsk this morning was similar, although it was of a much smaller scale.” Videos:
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