Uncategorized

  1. Astronomy

    Galactic de Gustibus

    About 13 billion years after its birth, our galaxy is still packing on the stars.

    By Ron Cowen
  2. Anthropology

    Mexican find reveals ancient dental work

    A 4,500-year-old human skeleton found in Mexico represents the earliest instance in the Americas of intentionally modified teeth, apparently to create space for a ceremonial mouthpiece.

    By Bruce Bower

  3. 19699

    Please check the picture in this article. The teeth shown are lower teeth. Theodore BlinderHavertown, Pa. The story and caption misidentified the teeth that had been filed down 4,300 years ago. They were the bottom-front teeth, shown at left in the photo. —B. Bower

    By Science News
  4. Tech

    Pumping Alloy

    A new way to power artificial muscles improves the prospects for making lifelike humanoid robots and prosthetic limbs.