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  1. Health & Medicine

    Genes linked to colon cancer take sides

    Cancers on opposite sides of the colon are genetically distinct and should be studied and treated as separate entities.

    By Ben Harder
  2. Health & Medicine

    Herbal therapy may carry cancer danger

    An herbal extract that some women use to relieve symptoms of menopause increases the likelihood in mice with breast cancer that the disease will spread.

    By Ben Harder
  3. Astronomy

    Storms from the Sun

    Interested in space weather and the effect of solar storms on Earth? The National Academies Press Web site offers the full text of the fascinating book Storms from the Sun: The Emerging Science of Space Weather, written by Michael J.