Feature

  1. Health & Medicine

    Statins Take On the Brain

    Cholesterol-lowering drugs may also treat or prevent Alzheimer's disease.

    By John Travis
  2. Tech

    Hop . . . Hop . . . Hopbots!

    Two prototype jumping robots that hop, crash-and-land, and then hop again are demonstrating a novel mobility concept that may finally enable small, cheap robots to roam widely over rough terrain.

    By Peter Weiss
  3. Chemistry

    The End of Good Science?

    Some chemists are sharing their research results more quickly and broadly as they begin to venture into electronic archives, where they can immediately post new, unreviewed papers, as physicists have done for a decade; others think such archives could mean the end of reliable chemistry research.