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  1. Physics

    Fermilab could beat CERN to the punch

    A new particle accelerator starting up next year in Switzerland should finally discover the origin of mass, unless an older U.S. machine does it first.

    By Davide Castelvecchi
  2. Health & Medicine

    No heart risk from hormones taken near menopause

    Contrary to some earlier indications, hormone replacement therapy might not impart heart risks to women who take it during their 50s.

    By Nathan Seppa
  3. Physics

    Liquid origami

    A French team has created the first mini-origami figures that fold themselves around droplets of water.

    By Davide Castelvecchi
  4. Earth

    Dry winters heat European summers

    When southern Europe receives scant rainfall in the winter, the whole continent tends to bake the following summer.