News

  1. Physics

    Physicists go totally random

    Calculations suggest a way to boost the independence of information flow, a finding that could help in cryptography.

    By Alexandra Witze
  2. Psychology

    When good moods go decisively bad

    Positive feelings may lead seniors to weigh fewer options and make poorer choices in some situations.

    By Bruce Bower
  3. Humans

    Crime numbers may mislead

    Criminologists argue that city safety rankings should consider underreporting and other sources of error in compiling statistics.

    By Rachel Ehrenberg
  4. Earth

    Study keeps pace with Greenland glaciers

    Herky-jerky motion of the island’s ice suggests that melting ice is unlikely to contribute to dramatic sea level rise this century, but the news isn’t all good.