Uncategorized

  1. Astronomy

    Iron-Poor Star: Closing in on the birth of the first stars

    Astronomers have found a star so old and metal poor that its chemical composition carries vestiges of the origin of our galaxy.

    By Ron Cowen
  2. Animals

    Fish Fraud: Cleaners show off before biting clients

    Some of the reef fish that make their living by nibbling parasites off other fish may be luring clients into scams by offering free massages.

    By Susan Milius
  3. Materials Science

    Metal Manipulation: Technique yields hard but stretchy materials

    Researchers have combined a standard metalworking technology—rolling—with a programmed sequence of cooling and heating steps to process copper into a form that contains both nanoscale and microscale crystal grains.