Uncategorized

  1. Pearls Unstrung

    For a while, the Great Lakes weren’t connected by rivers and Niagara Falls was just a trickle.

    By Sid Perkins
  2. Tech

    Isotope crisis threatens medical care

    Global production of the feedstock for the leading medical-imaging isotope is low and erratic, putting health care in jeopardy.

    By Janet Raloff

  3. Balancing gains and threats in cardiovascular care

    Clyde W. Yancy, a cardiologist and medical director of the Baylor Heart and Vascular Institute in Dallas, became national president of the American Heart Association on July 1. He recently spoke with Science News writer Nathan Seppa. Dramatic gains in cardiovascular care in the United States risk being negated by an epidemic of obesity, diabetes […]

    By Clyde Yancy

  4. Life Ascending: The Ten Great Inventions of Evolution by Nick Lane

    Review by Sid Perkins.