News

  1. Health & Medicine

    Troubled Hearts: Antibiotic might fend off second attack

    An antibiotic might protect people with heart disease from future coronary events, according to the results of a small-scale trial.

    By Ben Harder
  2. Astronomy

    Telescope Tuned Up: Back to work for orbiting observatory

    A rejuvenated Hubble Space Telescope floated away from the space shuttle Columbia on March 9 after astronauts spent a week renovating the observatory.

    By John Pickrell
  3. Health & Medicine

    Stem Cell Success: Mice fuel debate on embryo cloning

    In mouse studies, scientists have used a technique called therapeutic cloning to create personalized replacement tissue.

    By John Travis
  4. Health & Medicine

    Eight hours of sleep may not be so great

    Sleeping 8 to 9 hours a night doesn't necessarily translate into a longer life.