News

  1. Tech

    Little levers for satellites: Cilia may precisely dock tiny spacecraft

    Tiny artificial hairs that imitate biological cilia flex with enough muscle and finesse to maneuver tiny satellites into place for docking with a mother ship.

    By Peter Weiss
  2. Humans

    Forbidden tests: Panel seeks ban on human clones

    A national advisory panel has asked Congress to forbid cloning aimed at creating a child but urged the lawmakers to permit other medical experiments with cloned human cells.

    By Nathan Seppa
  3. Chemistry

    Making silicon naturally: Chemists glimpse organic substance in plankton

    For the first time, researchers have found a compound composed of both carbon and silicon within a living organism.