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  1. Health & Medicine

    An enzyme involved in cancer and aging gets a close-up

    The structure of telomerase, described with the greatest detail yet, may give researchers clues to cancer treatments and other telomerase-related illnesses.

    By Aimee Cunningham
  2. Physics

    ‘Time crystals’ created in two new types of materials

    A state of matter that repeats itself in time, not space, was found in certain liquids and a solid.

    By Emily Conover
  3. Animals

    Fighting like an animal doesn’t always mean a duel to the death

    Conflict resolution within species isn’t always deadly and often involves cost-benefit analyses.

    By Susan Milius
  4. Genetics

    Adapting to life in the north may have been a real headache

    A cold-sensing protein has adapted to different local climates, also affecting risk of migraine.