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  1. Math

    New largest prime discovered

    Computers have discovered a new largest prime number with a whopping 7,816,230 digits.

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  2. Astronomy

    Puzzling radio blasts

    Astronomers are stumped by powerful radio waves emanating from the center of our galaxy.

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  3. Math

    Fibonacci’s Other Numbers

    Arrays of whole numbers can give intriguing sums.

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  4. Humans

    From the March 9, 1935, issue

    How early fish learned to swim, a long-distance record for short radio waves, and tidal effects inside Earth.

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  5. Ospreys in the Classroom

    The University of Minnesota’s Raptor Center offers a set of multidisciplinary lesson plans introducing students from grades four through eight to raptors.