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  1. Anthropology

    Goat busters track domestication

    People began to manage herds of wild goats at least 10,000 years ago in western Iran.

    By Bruce Bower
  2. Anthropology

    Lucy on the ground with knuckles

    Some early human ancestors appear to have walked on all fours using their knuckles, much as chimpanzees do.

    By Bruce Bower
  3. Planetary Science

    Rocks on the ice

    Pristine fragments of a meteorite that fell January 18 in the frozen Yukon and that remained frozen until they were delivered to a NASA laboratory may reveal much about the earliest days of the solar system.

    By Ron Cowen
  4. Astronomy

    Black holes and their galaxies: A closer link

    Supermassive black holes and the galaxies they inhabit appear to grow up together.