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  1. Health & Medicine

    No pain, healthier brain

    When chronic back problems are treated, benefits extend above the neck.

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  2. Space

    Atom & Cosmos

    Liquid water possible on Earthlike planet, plus black-hole atoms, Io’s magma ocean and more in this week’s news.

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  3. Life

    Daytime bites for zombie ants

    The living dead of the insect world show an unexplained sense of timing: a surge of strange activity in the a.m. followed by a final death grip at midday.

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  4. Humans

    Humans

    New World’s oldest dog may have been dinner, plus worrisome PTSD and the benefits of artful dodging in this week’s news.