News

  1. Earth

    New type of hydrothermal vent looms large

    The discovery of a new type of hydrothermal vent system on an undersea mountain in the Atlantic Ocean suggests that submarine hydrothermal activity may be much more widespread than previously thought.

    By Sid Perkins
  2. Physics

    Antimatter mystery transcends new data

    The discovery of a disparity in decays of subatomic particles known as B mesons and anti-B mesons sheds light on how matter and antimatter differ but deepens the mystery of why matter predominates in the universe today.

    By Peter Weiss
  3. Anthropology

    Earliest Ancestor Emerges in Africa

    Scientists have found 5.2- to 5.8-million-year-old fossils in Ethiopia that represent the earliest known members of the human evolutionary family.