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Mount Wilson Observatory - Wikipedia
Hubble's Other Telescope And The Day It Rocked Our World : NPR
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Photograph of the Hooker telescope, a 100-inch reflecting telescope located at the Mount Wilson Observatory, California. Dated 20th Century Stock Photo - Alamy
Dome of 100” Hooker Telescope, Mount Wilson Observatory, California via Instagram [Photography] | My Word with Douglas E. Welch
100-inch Hooker Telescope
Telescope – Siyuan Li
Telescope | Smith | Encyclopedia of the History of Science