Heber Doust Curtis (June 27, 1872 – January 9, 1942) was an American astronomer. He participated in 11 expeditions for the study of solar eclipses, and, as an advocate and theorist that additional galaxies existed outside of the Milky Way, was involved in the 1920 Shapley–Curtis Debate concerning the size and galactic structure of the universe. (From Wikipedia) More about Heber Doust Curtis: Associated author: | Books about Heber Doust Curtis -- Books by Heber Doust Curtis Books about Heber Doust Curtis: 2 additional books about Heber Doust Curtis in the extended shelves:
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