Uncategorized

  1. Anthropology

    Evolution’s Surprise: Fossil find uproots our early ancestors

    Researchers announced the discovery of a nearly complete fossil skull, along with jaw fragments and isolated teeth, from the earliest known member of the human evolutionary family, which lived in central Africa between 7 million and 6 million years ago.

    By Bruce Bower
  2. Astronomy

    Let There Be Spin

    X-ray outbursts from two different pairs of stars in our Milky Way are providing clues about how the most rapidly rotating stars in the universe got their spin.

    By Ron Cowen
  3. Planetary Science

    Pristine fragments of asteroid breakup

    Planetary scientists have for the first time precisely dated a collision that smashed an asteroid into fragments.