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Braced for impact
Dr Matthew Genge explains how astronomers monitor the sky for objects like the Chelyabinsk meteor that could collide with Earth. (Extract 4 of 4 from the Imperial College Podcast 11 December 2013)
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By Imperial College LondonDr Matthew Genge explains how astronomers monitor the sky for objects like the Chelyabinsk meteor that could collide with Earth. (Extract 4 of 4 from the Imperial College Podcast 11 December 2013)