Feature

  1. Health & Medicine

    Aerial War against Disease

    Researchers around the world are catching on to the idea of using satellites to predict where diseases may strike.

    By John Pickrell
  2. Math

    Guessing Secrets

    Analyzing an intriguing variant of the familiar game of 20 questions provides insights into Internet communication.

    By Ivars Peterson
  3. Animals

    Lemonade from Broken Amber

    The fossilized microbes found inside termites that have been encased in amber for 20 million years are remarkably similar to those found within the ancient insects' modern cousins.

    By Sid Perkins
  4. Tech

    Taming High-Tech Particles

    Researchers are beginning to study whether nanomaterials could have unintended negative consequences in the human body or the environment.