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Exclusive report: Inside Chernobyl, 40 years after nuclear disaster

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Neanderthal infants were enormous compared with modern humans

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How to spot the Lyrid meteor shower tonight

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Plug-in solar is coming – how dangerous is it and is it worth it?

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Particles seen emerging from empty space for first time

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Electric vehicle owners could earn thousands by supporting power grid

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The rise, the fall and the rebound of cyclic cosmology

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The secret signals our organs send to repair tissues and slow ageing

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The man who crawls into the perilous heart of the Chernobyl reactor

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A key solution to climate change isn't happening – and that's good