Feature

  1. Biological Moon Shot

    The first entries—with the basics for a mere 30,000 species—in the Web-based Encyclopedia of Life are scheduled for release in a matter of weeks.

    By Susan Milius
  2. Materials Science

    Life in Print

    Tissues printed with an ink-jet could provide patches for damaged organs, new cell-based materials for drug testing, new ways to probe cellular communication, living sensors, or even fuel cell–type batteries.

    By Sarah Webb
  3. Physics

    Supercool, and Strange

    Scientists tracking H2O's highs and lows are finding new clues as to how and why the familiar substance is so odd. Recent research, for example, suggests that water may exist in two distinct liquid phases at ultralow temperatures.