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EMILIO SEGRE VISUAL ARCHIVES / AMERICAN INSTITUTE OF PHYSICS / SCIENCE PHOTO LIBRARY EMILIO SEGRE VISUAL ARCHIVES / AMERICAN INSTITUTE OF PHYSICS / SCIENCE PHOTO LIBRARY
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Hubble, Adams and Jeans. US astronomers Edwin Hubble (1889-1953, right) and Walter Adams (1876-1956, middle) with British astronomer James Jeans (1877-1946, left) in front of the 100-inch (2.5 metre) Hooker telescope at Mount Wilson Observatory, California, USA. Hubble, who worked at this observatory for most of his life, used the 100-inch telescope to observe Cepheid variable stars in the Andromeda nebula and prove that it was a galaxy outside our own. Adams was director of the Mount Wilson Observatory from 1923 to 1946. James Jeans was a research associate at the observatory between 1923 and 1944.Restrictions:.
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