News

  1. Paleontology

    Salvaged DNA adds to Neandertals’ mystique

    Researchers who isolated a sample of Neandertal mitochondrial DNA say that it provides no evidence that Neandertals contributed to modern human evolution.

    By Bruce Bower
  2. Earth

    More Waters Test Positive for Drugs

    Traces of drugs, excreted by people and livestock, pollute surface and ground waters in the United States, as had already been confirmed in Europe.

    By Janet Raloff
  3. Health & Medicine

    Immune gene linked to prostate cancer

    An immune-cell gene plays a role in predisposing men to prostate cancer.

    By John Travis
  4. Astronomy

    Found: Gamma-ray background information

    Resolving a 30-year-old mystery, astronomers say they have identified the source of the faint, high-energy glow of radiation known as the gamma-ray background.