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  1. Physics

    Proton size still perplexes despite a new measurement

    Study of hydrogen atoms supports the case for a smaller proton.

    By Emily Conover
  2. Genetics

    Ancient humans avoided inbreeding by networking

    Ancient DNA expands foragers’ social, mating networks.

    By Bruce Bower
  3. Astronomy

    50 years ago, a spacecraft discovered oxygen in moon rocks

    In 1967, scientists dreamed of lunar processing plants to turn moon rocks into oxygen.

    By Kyle Plantz
  4. Chemistry

    Chemistry Nobel Prize goes to 3-D snapshots of life’s atomic details

    An imaging technique that gives up-close 3-D views of proteins is honored in this year's chemistry Nobel Prize.

    By Carolyn Gramling and Laurel Hamers
  5. Science & Society

    The SN 10: Meet the scientists ready to transform their fields

    In this year’s SN 10, meet early- and mid-career research stars who are coming up with and testing new ideas in astronomy, archaeology, artificial intelligence and more.