Uncategorized

  1. Humans

    Clovis baby’s genome unveils Native American ancestry

    DNA from skeleton shows all tribes come from a single population.

    By Tina Hesman Saey
  2. Life

    Charms of small males may collapse a Darwin’s finch species

    Mating rules may be changing for one of the storied Galápagos birds.

    By Susan Milius
  3. Materials Science

    Making it work, on paper and just maybe in practice

    Last spring, Science News reported on the lack of progress by the main U.S. nuclear fusion effort. As the researchers still contend, laser-initiated fusion should work. It works on paper. But in practice, even a set of extremely powerful lasers failed to trigger the fusion of hydrogen nuclei and the concomitant chain reaction and release of net energy expected.