News

  1. Health & Medicine

    Tongue piercings worse with metal

    Stainless steel or titanium studs collect bacteria more readily than do studs made of plastic or Teflon, a study finds.

    By Nathan Seppa
  2. Humans

    Reviving the taste of an Iron Age beer

    Malted barley from a 2,550-year-old Celtic settlement offers savory insights into ancient malt beverage.

    By Bruce Bower
  3. Physics

    A twisted way to take pictures

    A corkscrew-shaped beam of electrons might someday yield better images of atoms and other tiny things.

    By Marissa Cevallos
  4. Math

    Fruit flies teach computers a lesson

    Insect's nerve cell development is a model of efficiency for sensing networks.