News

  1. Chemistry

    Plastic isn’t over yet

    A tough new form of the 20th century’s signature polymer could extend its usefulness and make it more recyclable.

    By Rachel Ehrenberg
  2. Life

    How both macho and meek persist

    Research in voles demonstrates one way that evolution preserves two divergent strategies in a single population.

    By Susan Milius
  3. Life

    Chromosome glitch tied to separation anxiety

    The finding is the latest in a series linking extra or missing gene copies to mental conditions.

    By Tina Hesman Saey
  4. Physics

    Metallic hydrogen makes its debut, maybe

    German scientists claim to have squeezed the gas into a liquid that could have multiple applications.