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Milky Way’s giant black hole pinned down
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Deep Fritz levels chess match
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Soyuz rocket explodes killing one
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US missile defence test dodges decoys
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Red heads suffer more pain
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Deep Fritz fights back in chess challenge
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Space station gets new backbone
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Software predicts user behaviour to stop attacks
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Close twin star system reveals a planet
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Malicious code hidden in email software
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Critical US satellites could be hacked
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Neutrino and X-ray physicists win Nobel Prize
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