Uncategorized

  1. Humans

    Hints of earlier human exit from Africa

    New finds suggest surprisingly early migrations by Homo sapiens out of Africa through an oasis-studded Arabia.

    By Bruce Bower
  2. Earth

    Dispersants persisted after BP spill

    Chemicals used to break up oil remained in the Gulf’s depths months after being released, an analysis shows.

    By Janet Raloff
  3. Tech

    Pint-sized Princess Leia nearer reality

    Faster but fuzzier holographic 3-D teleconferencing debuts.

    By Marissa Cevallos
  4. Chemistry

    What DNA does when it stretches

    The molecule of life has some interesting elastic properties that have scientists scratching their heads.

    By Daniel Strain
  5. Space

    A galaxy far, far, far away

    The Hubble space telescope has observed what may be the most distant celestial object ever observed 13.2