News

  1. Astronomy

    Gamma view of a big blast

    Astronomers have for the first time used extremely high-energy gamma rays to image a celestial body.

    By Ron Cowen
  2. Health & Medicine

    Sleeve worn on heart fights failure

    A new mesh wrap can be placed around an expanded and weakened heart to restore the organ to an efficient, elliptical form.

    By Ben Harder
  3. Health & Medicine

    Up and down make different workouts

    An unusual study conducted on an Alpine mountainside suggests that climbing a steep slope improves the body's ability to process certain fats, while descending such a slope enhances metabolism of a key sugar.

    By Ben Harder
  4. Health & Medicine

    Antioxidant Booster: Protein curbs lung damage caused by smoke

    A protein called Nrf2 defends against emphysema by activating dozens of genes that combat free radicals and toxic pollutants, a study in mice suggests.