News

  1. Animals

    Krill kick up a storm of ocean mixing

    Scientists have measured living creatures' contribution to the stirring of ocean water, and they found that little kicking krill legs do a lot.

    By Susan Milius
  2. Animals

    Silky feet

    Zebra tarantulas can secrete silk from their feet, a feat that may help them better adhere to surfaces.

    By Aimee Cunningham
  3. Health & Medicine

    Cigarettes and lead linked to attention disorder

    Nearly half a million cases of attention-deficit hyperactivity disorder among U.S. children are related to exposures to lead or their mothers' smoking while pregnant.

    By Ben Harder
  4. Astronomy

    Oversize supernova

    Researchers have found a supernova so luminous that it must have been produced by a much heavier star than the standard theory allows.