News

  1. Health & Medicine

    Switching Off Pain: Modeling relief on the action of marijuana

    A new drug, tested in rats, blocks pain caused when the nervous system goes awry without producing unwanted side effects.

    By Sorcha McDonagh
  2. Astronomy

    Swallow Thy Neighbor: Strong evidence of galactic cannibalism

    Astronomers have found a compelling case of a large galaxy caught in the act of eating a small fry.

    By Ron Cowen
  3. Plants

    Next loosestrife is already loose

    A Florida botanist warns against Nymphoides cristata and Rotala rotundifolia, very troublesome escapees from aquariums and water gardens.

    By Susan Milius
  4. Plants

    Misunderstood stripes confuse individuality

    In the debate over how many fungi make up one lichen body, a researcher argues for two unrelated fungal species in the same lichen.