The meteorite that just dropped in

In Science

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28th February, 2013
On February 15, astronomers and enthusiasts watched the skies as a small near-Earth asteroid passed uncomfortably close to our planet (only 27,500km away). Just as asteroid 2012 DA14 was approaching, however, an unexpected meteorite stole its thunder by exploding in the skies above the Russian city of Chelyabinsk, shattering windows and injuring more than 1500 people. The disintegration of the 10,000-tonne chunk of rock – the remnants of which hit the Earth north of the city – released energy equivalent to more than 500 kilotonnes of TNT, says Nasa. We didn’t know the meteorite was ...

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