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  1. Science & Society

    What we do and don’t know about how to prevent gun violence

    Background checks work to prevent gun violence; concealed carry and stand-your-ground laws don’t. But lack of data makes it hard to make other links.

    By Rachel Ehrenberg
  2. Anthropology

    Museum mummies sport world’s oldest tattoo drawings

    A wild bull and symbolic designs were imprinted on the bodies of two Egyptians at least 5,000 years ago.

    By Bruce Bower
  3. Science & Society

    Discussing what matters when facts are not enough

    Editor in Chief Nancy Shute reflects on finding common ground with science and policy.

    By Nancy Shute
  4. Neuroscience

    Readers muse about memory, magnetic monopoles and more

    Readers had questions about the physical trace of memory, magnetic monopoles, blowflies and more.