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The Edge

  •  Lombrozo_HERO

    Existential Comfort Without God

    Can natural explanations to life’s big questions be as consoling as religious ones?

  • Scharf_HERO

    What Is Life?

    An astrobiologist finds the heart of his work in a new novel by Richard Powers.

  •  Kaltenegger_HERO

    Where Aliens Could Be Watching Us

    More than 1,700 stars could have seen Earth in the past 5,000 years.