Feature

  1. Anthropology

    Mysterious Migrations

    Controversial new studies report that modern humans from Africa launched cultural advances in Europe at least 36,000 years ago and reached what's now western Russia more than 40,000 years ago.

    By Bruce Bower
  2. Astronomy

    Ticket to Ride?

    Astronomers are investigating how they might jump on NASA's lunar bandwagon, using the moon or its environs to study distant stars and galaxies.

    By Ron Cowen
  3. Computing

    Games Theory

    Online games can not only entertain but also provide valuable data for researchers tackling computer-vision and other tough computational problems.

    By Ivars Peterson
  4. Agriculture

    Herbal Herbicides

    Scientists are tapping plants, and the self-defense chemicals they make, for new weed killers, many of which may find use in organic farming.