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  1. Astronomy

    Star that exploded in 1437 tracked to its current position

    Astronomers have hunted down a star seen exploding in the year 1437 and traced it since, offering clues to the stages of a white dwarf.

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  2. Health & Medicine

    How gut bacteria may affect anxiety

    Microbes may tamper with the production of tiny molecules in brain regions that help control anxiety.

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  3. Science & Society

    How science has fed stereotypes about women

    A new book, Inferior, shows how biased research branded women as inferior and aims to set the record straight.

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  4. Animals

    Bones reveal what it was like to grow up dodo

    Scientists take a first look at the inside of dodo bones.