News

  1. Archaeology

    Indonesian stencils rival age of Europe’s early cave art

    Hand prints outlined in pigment were made in Southeast Asia at least 39,900 years ago, making the paintings about the same age as European cave art.

    By Bruce Bower
  2. Materials Science

    Blue LEDs win Nobel Prize in physics

    Light-emitting diodes have led to more energy-efficient bulbs that are elbowing out incandescents.

    By Andrew Grant
  3. Chemistry

    Lasers wrest oxygen from carbon dioxide

    By zapping oxygen molecules off carbon dioxide, an experiment hints that Earth may have had breathable air long before the dawn of plants.

    By Beth Mole
  4. Anthropology

    Mysterious foreigner may have ruled ancient Maya kingdom

    Bone chemistry suggests one of the early rulers of the Maya kingdom Copan and his retainers had foreign credentials.