News

  1. Life

    Body’s bacteria don’t outnumber human cells so much after all

    New calculations show human cells about equal bacteria in the body.

    By Tina Hesman Saey
  2. Earth

    Ground shakes expose faraway earthquake hot spots

    A major earthquake in Costa Rica revealed faraway areas where fluids have weakened rock and boosted the risk of a major earthquake, new research suggests.

    By Thomas Sumner
  3. Astronomy

    To search for an advanced civilization, take a U-turn to star clusters

    Globular star clusters might be safe, stable homes for long-lived advanced civilizations.

    By Christopher Crockett
  4. Genetics

    The Iceman tells a new tale: Infection with ulcer-causing bacteria

    Ötzi the Iceman was infected with a virulent strain of H.