News

  1. Earth

    Small earthquakes may not predict larger ones

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

    By Sid Perkins
  2. 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
  3. Space

    Volcanic and ferric surprises on Mercury

    Volcanic activity is more recent than expected, MESSENGER shows on its third flyby of the planet. Also, surface iron occurs as oxides.

    By Lisa Grossman
  4. Space

    New way to help avoid a space shuttle disaster

    A new technique to make shuttle launches safer combines tricks from particle colliders, moon landings and vulture tracking.