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UPDATE: While waiting for asteroid 2012 DA14's close encounter with Earth, a 50-foot meteor unexpectedly crashed in Chebarkul, Russia. Nearly 1,200 people were reported injured by the shock wave from the explosion, estimated to be as strong as 20 Hiroshima atomic bombs.
Plus, in an unrelated occurance, asteroid 2012 DA14 passed safely by Earth just 17,000 miles above the surface. Read on for more information about asteroids and how we're trying to prevent a major catastophe from an asteroid collision with Earth.