Vesto Melvin Slipher
1875-1969
American astronomer who contributed to spiral nebulae theory. Earning a doctorate from Indiana University, Slipher measured planets' rotation periods at the Lowel...
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When Vesto Slipher was born, it was commonly accepted that the universe was composed of a single galaxy. Everything that was visible, whether a star or a mysterious, wispy nebula, was a part of the Mi...
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Vesto Melvin Slipher
Vesto Melvin Slipher