News

  1. Anthropology

    Human ancestor gets leg up on walking

    A new analysis of a 6-million-year-old leg fossil from a member of the human evolutionary family indicates that this individual walked upright with nearly the same deftness as people today do.

    By Bruce Bower
  2. Health & Medicine

    Liver transplants succeed in many hepatitis C patients

    People who receive liver transplants for hepatitis C infections fare about as well as people getting such transplants for other diseases.

    By Nathan Seppa
  3. Astronomy

    Beryllium data confirm stars’ age

    Measuring trace amounts of beryllium in two elderly stars, astronomers have found additional evidence that the first stars in the universe formed less than 200 million years after the Big Bang.