Feature

  1. Showdown at Sex Gap

    Faced with two contrasting reports on the science of sex differences in mathematics and science aptitude, researchers at a meeting held in October tried to figure out what's really known about this controversy and how the findings apply to education and test taking.

    By Bruce Bower
  2. Physics

    Shadow World

    Physicists have found new evidence for a 10-year-old conjecture that bridges the gap between the many-dimensional space of string theory and more familiar theorizing.

    By Davide Castelvecchi
  3. Paleontology

    Back from the Dead?

    The long-term disappearance of creatures from the fossil record and their later reemergence can provide insights into ancient environmental conditions and the trustworthiness of the fossil record itself.