August 20, 2005 | Science News

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  • News

    Roughing up counterfeiters

    A new anticounterfeiting scheme generates unique, reproducible identity codes that could be used to authenticate passports, credit cards, and other items on the basis of inherent, microscopic irregularities in the items' surfaces.
  • News

    Big sky

    The biggest survey of the heavens just got bigger when the Sloan Digital Sky Survey received a 3-year extension.
  • Feature

    Potent Medicine

    Drugs now used to treat erectile dysfunction might soon assume multiple roles in managing heart disease and other conditions, including some that affect women and infants.
  • Feature

    Myth of the Bad-Nose Birds

    Even though a lot of people still believe birds have no sense of smell, certain species rely on their noses for important jobs, such as finding food and shelter, and maybe even a mate.