News

  1. Health & Medicine

    Vaccine may head off genital cancer in women

    An experimental immunization can clear up premalignant growths caused by the human papillomavirus in some patients.

    By Nathan Seppa
  2. Earth

    Small earthquakes may not predict larger ones

    Quakes far from tectonic plate boundaries may simply be aftershocks of ancient temblors.

    By Sid Perkins
  3. Animals

    Textbook case of color-changing spider reopened

    Female crab spiders switch colors to match flowers but may not fool their prey

    By Susan Milius
  4. Space

    Volcanic and ferric surprises on Mercury

    Volcanic activity is more recent than expected, MESSENGER shows on its third flyby of the planet.