News

  1. Animals

    Early arthropod had a fancy brain

    A 520-million-year-old fossil of a segmented animal shows that sophisticated central nervous systems are surprisingly ancient.

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  2. Chemistry

    Depths hold clues to dearth of xenon in air

    The gas doesn’t dissolve well in minerals deep inside Earth, a discovery that may explain why it’s also scarce in the atmosphere.

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  3. Life

    Research in cell communication system wins 2012 chemistry Nobel

    G protein-coupled receptors relay messages from other cells and the environment into the cell's interior.

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  4. Tech

    Cancer cells executed by magnet

    Metal nanoparticles trigger cell's own death machinery.