Stunning new orchid species grows in lawns and parks in Japan

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Einstein was right about the way matter plunges into black holes

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Genetic mutation gives cats a 'salty liquorice' coat colour

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Sunlight-trapping device can generate temperatures over 1000°C

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Keto diet may accelerate organ ageing

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We are about to hear echoes in the fabric of space for the first time

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Longest-living cat breeds revealed by life expectancy study

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Physicists are grappling with their own reproducibility crisis

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500-year-old maths problem turns out to apply to coffee and clocks

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Fragile quantum entanglement may survive chaos of chemical reactions

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Some brain injury patients would recover if life support weren't ended