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  1. Eclipse Patrol

    The first lunar eclipse of the year 2000 will be visible from North and South America on the evening of Jan. 20. Fred Espenak’s eclipse home page at the NASA/Goddard Space Flight Center Web site provides a complete guide to upcoming eclipses of the sun and moon. Go to: http://sunearth.gsfc.nasa.gov/eclipse/eclipse.html

    By Science News
  2. Math

    Squares, primes, and proofs

    Mathematicians have proved the so-called local Langlands correspondence, a broad generalization of a surprising connection between prime numbers and perfect squares.

    By Ivars Peterson
  3. Math

    Losing to win

    Two games of chance, each guaranteed to give a player a predominance of losses in the long term, can add up to a winning outcome if the player alternates between the two games.