News

  1. Health & Medicine

    A urine test may predict lung cancer risk

    A urine test that reveals levels of two tobacco-related compounds may identify which smokers are most prone to developing lung cancer, a new study finds.

    By Nathan Seppa
  2. Humans

    Naps may help infants form abstract memories

    Napping critically assists 15-month-olds in remembering the underlying structure of the language adults speak to them, a new study indicates.

    By Bruce Bower
  3. Physics

    Nanoclusters seem to skirt physics law

    In simulations, tiny loophole allows colliding nanoclusters to increase speed after impact.

    By Laura Sanders
  4. Earth

    An earlier appearance for the first land plants

    Fossilized pollen could show that modern land plants evolved earlier than thought.