Russia Chelyabinsk meteorite shower occurred in the city after the attacks, scientists meteorite fragments were collected and found that it may be hidden behind a larger mass object.
According to foreign media reports, in February this year occurred in the Russian city of Chelyabinsk meteorite shower attacks caused serious damage, scientists estimate that the meteorite mass of 500 tons, one called Alexander Ivanov of Russia who captured the moment of the disintegration of the meteorite, showing the process of disintegration of 2.4 seconds. Chelyabinsk meteorite struck after the explosion, the researchers carried out a detailed investigation, the occurrence or existence behind a more surprising secret that 500 tons of debris may come from a larger NEOs, but we have not find traces of it, scientists trying to establish meteorite fall trajectory thrust reversers possible NEOs position.
Two separate teams were started meteorite attacks traceable results agreed that the blast occurred at about 30 km altitude, the released energy of 500 tons of TNT equivalent. Scientists gather to fall to the ground on the celestial debris and found the atmosphere friction meteorite destroyed nearly 76 percent of the mass flow, most of the rest of the dust structure, is a rare type of meteorite LL chondrites, have that type asteroid 25143, ie IPA [itokawa], the Japanese Hayabusa probe was carried out in-depth investigation, the track passes through the vicinity of Mars.
Scientists believe Chelyabinsk city is in fact a lucky falling meteorite fragments possibly through collisions splinter from a larger celestial body, which means they are likely not the same track, just a single space debris, even so a larger celestial debris has caused such a large area of damage.
Some studies show that a wide 1.4 miles (2.2 km wide) asteroid 1999 NC43 may be hidden behind larger objects, which means that asteroid 1999 NC43 is potentially threatening asteroids, do not rule out the possibility in the next few centuries close contact with the Earth or the collision occurred.Russian Academy of Sciences scientist Olga Popova and other calculated attack speed of 19 kilometers per second, penetrate the atmosphere after dispersing into numerous fragments, about 4-6 tons of quality falls on the ground, some of which fall in Qie Baer Kul lake.