Feature

  1. Astronomy

    Explosive Tales

    Four hundred years after the explosion of the Kepler supernova, the last such stellar eruption in our galaxy, astronomers have examined the supernova's remnant with state-of-the-art telescopes that view it in infrared, optical, and X-ray light.

    By Ron Cowen
  2. Anthropology

    Remnants of the Past

    Sophisticated analyses suggest that some prehistoric peoples were highly skilled weavers.

    By Diana Parsell
  3. Math

    Take a Chance

    Researchers are helping to turn the art of generating randomness into a precise science.

    By Erica Klarreich

  4. DNA Bar Codes

    Scientists are using a small piece of DNA as a molecular bar code, a unique identifier to separate organisms into species.