Uncategorized

  1. Health & Medicine

    Sharpening the focus of mammograms

    Digital mammography can detect up to one-fourth more cancers than traditional film mammography can in women who are under 50, haven't gone through menopause, or who have dense breast tissue.

    By Nathan Seppa
  2. Earth

    Pack Rat Piles: Rodent rubbish provides ice age thermometer

    Analyses of fossilized plant remnants collected by pack rats reveal that the Grand Canyon was much cooler than previously thought during the latter part of the last ice age.

    By Katie Greene

  3. ***Notice to Subscribers in Areas Affected by Hurricane Katrina***

    The U.S. Postal Service has asked magazine publishers to suspend subscription mailings to areas that were damaged by Hurricane Katrina.