News

  1. 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
  2. Climate

    Mount Kilimanjaro could soon be bald

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

    By Sid Perkins
  3. 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
  4. Health & Medicine

    HIV self-test proves accurate

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