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  1. Earth

    Ancient zircons offer insights into earthquakes of the past

    Analyzing zircons’ chemical makeup can help expose intense quakes from the past and improve our understanding of the physics of today’s tremors.

    By Nikk Ogasa
  2. Anthropology

    A new origin story for domesticated chickens starts in rice fields 3,500 years ago

    Chickens, popular on today’s menus, got their start in Southeast Asia surprisingly recently, probably as exotic or revered animals, researchers say.

    By Bruce Bower
  3. Science & Society

    Growing wildfire threats loom over the birthplace of the atomic bomb

    Climate change is expected to make wildfires worse across much of the Southwest United States. A key nuclear weapons lab could be in the hot zone.