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NASA scrambles for better asteroid detection

A man in Moscow looks at a computer screen displaying a picture reportedly taken in Chelyabinsk on February 15, 2013, showing the trail of a meteorite above a residential area of the city. NASA, universities and private groups in the US are working on astNASA, universities and private groups in the US are working on asteroid warning systems that can detect objects from space like the one that struck Russia last week with a blinding flash and mighty boom.