News

  1. Health & Medicine

    Caloric restriction extends life in monkeys, study finds

    New study finds calorie restriction delays age-related diseases in monkeys. Another study reports that an immune-suppressing drug helps elderly mice live longer.

    By Tina Hesman Saey
  2. Anthropology

    Maize may have fueled ancient Andean civilization

    A chemical analysis of skeletons from Peru’s Andes Mountains suggests that cultivation of key crop made building a prehistoric civilization possible.

    By Bruce Bower
  3. Physics

    Graphene gains nearly perfect liquid status

    Scientists have found that electrons in a layer of carbon atoms can become a strongly interacting swirling soup.

    By Rachel Ehrenberg
  4. Physics

    Capping the length of extra dimensions

    The existence of a small, elderly black hole places a new upper limit on the length of any extra dimension, a new study suggests.