"Clyde Tombaugh Tells Story of Discovering Ninth Planet," 1930

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"Clyde Tombaugh Tells Story of Discovering Ninth Planet," 1930 -

Clipped from
  1. Arizona Republic,
  2. 15 Mar 1930, Sat,
  3. Page 8

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  • "Clyde Tombaugh Tells Story of Discovering Ninth Planet," 1930

    staff_reporter – 14 Dec 2018