News in Brief

  1. Chemistry

    Microsculptures made easy

    Minerals assemble on demand into tiny, complex shapes like tiny flowers.

    By Rachel Ehrenberg
  2. Materials Science

    3-D imaging, pixel by pixel

    Easy technique uses inexpensive equipment to make three-dimensional rendering.

    By Andrew Grant
  3. Oceans

    Glacier melt causes large fraction of sea level rise

    From 2003 to 2009, thawing ice nearly as large a contributor to oceans as massive sheets at poles, researchers find in new analysis.

    By Erin Wayman
  4. Climate

    Warming may not release Arctic carbon

    Element could stay locked in soil, 20-year study suggests.

    By Erin Wayman
  5. Animals

    The secret behind the alligator’s toothy smile

    Dental stem cells enable the reptile to grow new teeth every year, researchers find.