News

  1. Astronomy

    X-ray craft sees Venus in whole new light

    Astronomers have unveiled the first X-ray image of Venus.

    By Ron Cowen
  2. Anthropology

    Human evolution put brakes on tooth growth

    A new analysis of fossil teeth indicates that the slower pace of dental development observed in people today dates back only about 100,000 years.

    By Bruce Bower
  3. Animals

    New lizard ties for ‘world’s smallest’

    A newly discovered lizard small enough to curl up on a dime ties for the title of the smallest of its kind in the world.

    By Susan Milius
  4. Health & Medicine

    Low Radiation Hurts Bystander Cells

    New research confirms that alpha particles from decaying radon atoms can damage neighboring cells they don't directly hit and suggests a mechanism for this so-called bystander effect.