News

  1. Earth

    Life may have been possible in Earth’s earliest, most hellish eon

    Heat from asteroid bombardment during Earth’s earliest eon wasn’t too intense for life to exist on the planet, a new study suggests.

    By Carolyn Gramling
  2. Genetics

    Scientists find 10 new defense systems used by bacteria

    Scientists identify 10 groups of genes that appear to govern defense systems used by bacteria against virus attacks.

    By Laurel Hamers
  3. Anthropology

    An ancient jaw pushes humans’ African departure back in time

    If an ancient jaw found in an Israeli cave belongs to Homo sapiens, the humans left Africa tens of thousands of years earlier than we thought.

    By Bruce Bower
  4. Earth

    Overlooked air pollution may be fueling more powerful storms

    The tiniest particles in air pollution aren’t just a health threat.