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1

The biggest threat to Chernobyl is no longer radiation

2

Neanderthal infants were enormous compared with modern humans

3

Largest ever map of universe captures 47 million galaxies and quasars

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Exclusive report: Inside Chernobyl, 40 years after nuclear disaster

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How to spot the Lyrid meteor shower tonight

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Monkeys walk around a virtual world using only their thoughts

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People are refusing transfusions from donors vaccinated against covid

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Our dreams become more emotive and symbolic as we approach death

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

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Emperor penguins added to endangered list after rapid decline