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  1. 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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  2. 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.

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  3. Life

    How helpful gut microbes send signals that they are friends, not foes

    Some beneficial gut bacteria use unique form of communication to let immune cells know that they’re friendly.

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  4. Physics

    Japan puts plans for the world’s next big particle collider on hold

    The jury is still out on whether Japan will host the world’s first “Higgs factory” — the International Linear Collider.