Response to History of Modern Astrophysics Survey, 1980.
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Clyde William Tombaugh was born February 4, 1906 on a farm near Streator, IL. The family moved to a farm in Kansas in 1922. He was hired to conduct planet-search photography in 1929 at the Lowell Observatory in Flagstaff, AZ. On February 18, 1930, Tombaugh discovered the ninth planet Pluto. The official announcement of the discovery was made March 13. The discovery led to awards and a scholarship to the University of Kansas where he started as a freshman in 1932, receiving his B.A. in 1936. In 1...