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  1. 19408

    I described everything in this article almost 50 years ago in The City and the Stars (1956, Harcourt, Brace, and World). See chapter 6: “He set up the matrix of all possible integers, and started his computer stringing the primes across its surface as beads might be arranged at the intersections of a mesh. Jeserac […]

    By Science News
  2. Math

    Primal Progress: Pattern hunters spy order among prime numbers

    The population of prime numbers includes an infinite collection of arithmetic progressions.

    By Erica Klarreich
  3. Earth

    Lava Life: Hints of microbes in ancient ocean rocks

    Microscopic, carbon-lined tubes in lava that erupted onto the ocean floor about 3.5 billion years ago were etched by microbes, a number of signs suggest.