News

  1. Health & Medicine

    Breastfeeding should take a toll on bones. A brain hormone may protect them

    The hormone CCN3 improves bone strength even as breastfeeding saps bones of calcium, a study in mice shows.

    By Claire Yuan
  2. Astronomy

    A middleweight black hole has been spotted for the first time in our galaxy

    The rare find, discovered in the star cluster Omega Centauri, could offer clues to how black holes and galaxies evolve.

    By Lisa Grossman
  3. Animals

    Tiny saunas help frogs fight off chytrid fungus

    Balmy shelters could bolster resistance to the deadly fungus in amphibian populations, but experts caution they won’t work for all susceptible species.

    By Skyler Ware
  4. Health & Medicine

    How doctors can help demystify birth control amid online confusion

    There’s a larger takeaway from some social media content about hormonal birth control side effects: People aren’t getting the information they need.