Uncategorized

  1. Infants emerge as picky imitators

    By the age of 14 months, babies display a feel for evaluating the sensibility of an adult's behavior and either imitating the means to a goal or opting for a simpler way to achieve the same result.

    By Bruce Bower
  2. Astronomy

    The Milky Way’s Middle

    Sensitive X-ray, infrared, and radio telescopes are now providing an extraordinarily clear view of the dust-shrouded center of our galaxy.

    By Ron Cowen
  3. Health & Medicine

    Alzheimer’s vaccine trial is suspended

    A drug company in Ireland has halted tests of an experimental vaccine for Alzheimer's disease.

    By John Travis
  4. Tech

    Itsy chain turns bitsy gears

    A tiny chain with links the size of biological cells offers a new way to deliver power to micromachines.