News

  1. 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
  2. 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.

    By Lisa Grossman
  3. Climate

    Mount Kilimanjaro could soon be bald

    The world-renowned ice caps could disappear by 2022, new research suggests.

    By Sid Perkins
  4. Space

    Cosmic rays traced to centers of star birth

    By detecting gamma rays, a new generation of telescopes bolsters theory that supernovas are origin of some cosmic rays

    By Ron Cowen
  5. Health & Medicine

    HIV self-test proves accurate

    Study in an ER shows individuals successfully determined their own HIV status.