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  1. Earth

    AGU conference on climate and civilizations

    Ancient trash piles yield Everglades trees, plus 'green' Vikings and more in meeting news.

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  2. Earth

    A matter of gravity

    A new map of Earth’s gravitational field is the sharpest ever acquired.

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  3. Health & Medicine

    Breast milk may harbor cancer clues

    Analysis could provide a noninvasive means for testing risk in women, an early-stage study shows.

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  4. Humans

    Brain’s mirror system loves the robot

    Experiments that shed light on how the "monkey see, monkey do" part works may suggest why we feel sad for Wall-E.

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  5. Book Review: The 4 Percent Universe: Dark Matter, Dark Energy and the Race to Discover the Rest of Reality by Richard Panek

    Review by Ron Cowen.