News

  1. Earth

    Sahara to get hotter, drier, smaller

    By the end of this century, the world's hottest desert will be even hotter, drier, and smaller than it is now, according to an international team of climate modelers.

    By Sid Perkins
  2. Earth

    Resetting a clock from Earth’s rocks

    Better measurements of one of the rates of radioactive decay used to date extremely old rocks open up the possibility that Earth may have had a crust as many as 200 million years earlier than previously thought.

    By Sid Perkins
  3. Computing

    Web worms: Code Red to Warhol

    Using an efficient infection strategy, a malicious programmer could deploy a rogue computer program far more voracious than the Code Red worm that struck on July 19.