News

  1. Physics

    Capping the length of extra dimensions

    The existence of a small, elderly black hole places a new upper limit on the length of any extra dimension, a new study suggests.

    By Ron Cowen
  2. Life

    Hornets suffocate in bee ball

    Researchers find a spike in carbon dioxide, along with an increase in heat, makes honeybees' enemies vulnerable.

    By Rachel Ehrenberg
  3. Life

    Climate change shrinks sheep

    Milder winters help small, weak lambs survive but more competition for food slows growth.

    By Susan Milius
  4. Earth

    New cyclone predictor

    Researchers link occasional sea-surface warming in central Pacific with more, stronger hurricanes in North Atlantic.