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Created page with "== History == Mount Wilson Observatory, located in the San Gabriel Mountains of Southern California, has a rich history dating back to its establishment in 1904. Founded by George Ellery Hale, the observatory was initially equipped with a 60-inch telescope, which at the time was the largest operational telescope in the world. The observatory was later expanded with the addition of a 100-inch Hooker telescope in 1917, again setting a record for the..."