Feature

  1. Into the Fold

    Flat structures pop into 3-D forms, yielding miniature robots and tools.

    By Susan Gaidos

  2. Families in Flux

    As household arrangements take new directions, scientists attempt to sort out the social effects.

    By Bruce Bower

  3. Early Arrival

    Premature puberty among girls poses scientific puzzle.

    By Laura Beil
  4. Astronomy

    Onward and Skyward

    With new efforts aimed at the stars, China seeks to revive its astronomical reputation.

    By Nadia Drake
  5. Climate

    Extremely Bad Weather

    Teasing out global warming's role in worsening hurricanes, droughts and other extreme events.

    By Janet Raloff
  6. Tech

    Beginnings of Bionic

    Electronics that bend with the human body may soon make their way into medical devices to track health, deliver treatments and improve surgery.