100-inch telescope south float, pedestal and worm wheel, Mount Wilson Observatory — Calisphere

100-inch telescope south float, pedestal and worm wheel, Mount

Mount Wilson Observatory - Exploring the Stars

Giant 100 inch telescope Mt. Wilson Observatory, California

100-inch reflecting telescope inside domed building, Mount Wilson

Mount Wilson Institute — Harlow Shapley Project

At Mt. Wilson, scientists celebrate 100th birthday of the

Mount Wilson Observatory - Exploring the Stars

Mount wilson observatory hi-res stock photography and images - Alamy

Mount Wilson Observatory Building the 100-inch Telescope

Mount Wilson Observatory - Exploring the Stars

Mount Wilson Observatory Building the 60-inch Telescope

A Tradition of Cosmic Discovery at Mount Wilson Observatory

Mount Wilson Observatory Building the 100-inch Telescope