News

  1. Anthropology

    Northwest Passage: Americas populated via Alaska, genetics show

    A single population of prehistoric Siberians crossed the Bering Strait into Alaska and fanned out to North and South America, a new genetic analysis of living Native Americans suggests.

    By Brian Vastag
  2. Planetary Science

    Sister Planet: Mission to Venus reveals watery past

    The Venus Express probe has found evidence that Venus once had more water than it does today, and has provided new measurements of the weather on Venus, proof of lightning on the planet, and signs of a formerly unknown hot spot near its south pole.

    By Sarah Williams
  3. Health & Medicine

    Dengue virus found in donated blood

    Scientists have discovered that 12 units of blood donated in Puerto Rico in late 2005 contained the dengue virus.