The UN takes on ASTEROIDS: Scientists' expertise are pooled to help tackle threat of future space rocks

August 13, 2014 9:33 PM

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Scientists believe there are around one million near-Earth asteroids that could post a threat to our planet – but only a tiny fraction have so far been detected.

The threat is so serious that former astronaut Ed Lu has described it as ‘cosmic roulette’ and said that only ‘blind luck’ has so far saved humanity from a serious impact.

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