News

  1. Anthropology

    ‘Slam-dunk’ find puts hunter-gatherers in Florida 14,500 years ago

    Finds at an underwater site put people in Florida a surprisingly long time ago.

    By Bruce Bower
  2. Earth

    Remnants from Earth’s birth linger 4.5 billion years later

    Shaken, not stirred: Tungsten isotopes reveal that mantle convection has left some remnants of ancient Earth untouched for 4.5 billion years.

    By Beth Geiger
  3. Life

    Gut microbe may challenge textbook on complex cells

    Science may finally have found a complex eukaryote cell that has lost all of its mitochondria.

    By Susan Milius
  4. Life

    How to trap sperm

    Lab-made beads can trick and trap sperm, potentially preventing pregnancy or selecting sperm for fertility treatments.