News

  1. Earth

    Global Impact: Space object may have spread debris worldwide

    Sediments laid down about 3.47 billion years ago in what are now western Australia and eastern South Africa contain remnants of what may have been an extraterrestrial-object impact large enough to disperse debris over the entire planet.

    By
  2. Anthrax Stopper: Viral enzyme detects, kills bacterium

    A virus that preys upon the anthrax bacterium produces an enzyme that can be exploited to detect and kill the biowarfare agent.

    By
  3. Math

    Math Prizes: Honors for connecting number theory, geometry, and algebra

    Fields Medals were awarded to two mathematicians, Laurent Lafforgue and Vladimir Voevodsky, who forged new links between different branches of mathematics.