Feature

  1. Health & Medicine

    Live antibiotics use bacteria to kill bacteria

    Certain bacteria will destroy other bacteria without harming humans. They may be an answer to antibiotic-resistant infections.

    By Elizabeth Eaton
  2. Health & Medicine

    For babies exposed to opioids in the womb, parents may be the best medicine

    A surge in opioid-exposed newborns has U.S. doctors revamping treatments and focusing on families.

    By Meghan Rosen
  3. Health & Medicine

    The opioid epidemic spurs a search for new, safer painkillers

    Today’s opioids stop pain — but they’re also dangerous. Scientists are hunting for replacements.

    By Laurel Hamers
  4. Archaeology

    Chaco Canyon’s ancient civilization continues to puzzle

    A dynasty may have risen from the dead in an ancient Chaco great house.