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  1. Physics

    Microwaved grapes make fireballs, and scientists now know why

    Electromagnetic waves bounce back and forth inside a grape, creating plasma.

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  2. Animals

    ‘Skeleton Keys’ unlocks the history and mysteries of bones

    From fish to dinosaurs to King Richard III, ‘Skeleton Keys’ surveys the scientific and cultural history of bones.

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  3. Astronomy

    Merging magnetic blobs fuel the sun’s huge plasma eruptions

    Solar eruptions called coronal mass ejections grow from a series of smaller events, observations show.

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  4. Life

    Human encroachment threatens chimpanzee culture

    Human activity is affecting chimps’ behavioral repertoire, a new study suggests. Creating chimp cultural heritage sites might save unique behaviors.