News

  1. Health & Medicine

    Autism, ADHD risk not linked to prenatal exposure to antidepressants

    Taking antidepressants during pregnancy does not increase the risk of autism or attention-deficit/hyperactivity disorder, two new large studies suggest.

    By Aimee Cunningham
  2. Archaeology

    Shock-absorbing spear points kept early North Americans on the hunt

    Ancient Americans invented a way to make spear points last on an unfamiliar continent.

    By Bruce Bower
  3. Oceans

    More than one ocean motion determines tsunami size

    The horizontal movement of the seafloor during an earthquake can boost the size of the resulting tsunami, researchers propose.

    By Thomas Sumner
  4. Planetary Science

    Food for microbes found on Enceladus

    The underground ocean of Saturn’s moon Enceladus harbors an abundance of molecular hydrogen, which could be an important source of food if microbial life exists there.