Uncategorized

  1. Astronomy

    Postcards from the edge

    New data about the edge of the solar system offer surprises about how the sun interacts with our galaxy.

    By Ron Cowen
  2. Animals

    Mighty mites

    Mites that were thought to be parasites to their host wasps turn out to be bodyguards, attacking intruders.

    By Rachel Ehrenberg
  3. Physics

    Layers in a Stradivarius

    Slight differences in the wood from which violins are made might be what distinguishes a mellow-toned Stradivarius from an ordinary instrument.

    By Sid Perkins
  4. Health & Medicine

    Surviving HIV

    Since the development in the mid-1990s of a state-of-the-art drug cocktail for HIV, patient survival has extended dramatically, a new study shows.