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  1. Chemistry

    Molecules/Matter & Energy

    Groovy snake bites, buzzy microphones and coiling liquids in this week’s news.

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  2. Earth

    Earth/Environment

    How Antarctica got its ice, plus Chinese dust-ups and rising bird malaria in this week’s news.

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  3. Earth

    Grand Canyon born by continental lift

    A "drip" deep within the Earth may have raised the Colorado plateau to create the spectacular landscape of the U.S. Southwest.

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  4. Life

    Genes & Cells

    A boost for tired antibiotics, plus a fishy mom’s mucus and high-gravity microbes in this week’s news.

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  5. Earth

    With warming, Arctic is losing ground

    Scientists anticipate big ecosystem changes as erosion spills nutrients into the sea

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  6. Space

    Former planet may have grown a tail

    Pluto appears to trail a cometlike cloud of gas.