News

  1. Tech

    Degradable devices vanish after use

    Technique combines silicon, magnesium and silk for medical implants, transistors and digital cameras that can melt away.

    By Rachel Ehrenberg
  2. Astronomy

    Team glimpses black hole’s secrets

    In the distant galaxy M87, new observations about structure’s rotational speed and jets show the potential of a budding telescope network.

    By Nadia Drake
  3. Humans

    In New Guinea, peace comes with a price

    Conflict resolution in small-scale societies may have contributed to declines in state-sponsored violence.

    By Bruce Bower
  4. Earth

    Intraplate quakes signal tectonic breakup

    The unusual April temblors are the latest in a massive energy release that is cleaving the Indo-Australian crustal plate in two.