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  1. Genome from a bottle

    Back Story: Cracking the code.

    By Science News
  2. Physics

    Law & Disorder: A Companion

    More resources about how physicists and philosophers understand time.

    By Science News

  3. Law & Disorder

    Physicists keep trying to explain why time flows one way.

    By Tom Siegfried

  4. Melting at the microscale

    Studying sea ice close-up may improve climate models.

    By Alexandra Witze

  5. Science Past from the issue of June 18, 1960

    USSR USES SABIN VACCINE — The Sabin live polio virus vaccine, developed in the United States but not yet licensed here, is “completely harmless” and extremely effective, Russian scientists have found.