Uncategorized

  1. Health & Medicine

    New sources and uses for stem cells

    Human skin and scalp tissue may provide a source of neural stem cells.

    By John Travis
  2. Materials Science

    One-Upping Nature’s Materials

    Striving for designer substances that build themselves from individual molecules.

    By Jessica Gorman
  3. Animals

    Will Mr. Bowerbird Fall for a Robot?

    Push a button and she turns her head. But can she turn his?

    By Susan Milius
  4. Physics

    An electron ruler gauges crystal flaws

    Electrons ricocheting through a crystal now make it possible for scientists to discern shifts in crystal lattices as small as a hundredth of an atom's width.