News

  1. Physics

    Martian lightning

    The Red Planet’s dust devils charge up particles, providing first direct evidence of this type of electrical discharge on Mars.

    By Jenny Lauren Lee
  2. Health & Medicine

    Downside of red-hot chili peppers

    In the wild, a culinary kick comes with risks to the plant.

    By Susan Milius
  3. Life

    Mosquito fish count comrades to stay alive

    New experiments indicate that mosquito fish can count small numbers of companions swimming in different groups, an ability that apparently evolved to assist these fish in avoiding predators.

    By Bruce Bower
  4. Health & Medicine

    A role for Merkels

    Mysterious skin cells known as Merkel cells are required to sense light touches.