Image caption: An aerial view of Mount Wilson Observatory shows the scientific instruments, combined with the mountain’s natural beauty and breathtaking views from atop the San Gabriel Mountains. Credit: LA Astronomical Society. With this week’s Chapter 18, we bring “Discovering Mount Wilson” to a close -- for...

Image caption: Walter Baade (1893-1960), astronomer (Photo Courtesy:  The Huntington Library, San Marino, California) We continue ‘Discovering Mount Wilson’ with Chapter 17, showcasing Astronomer Walter Baade (1893-1960), discoverer of stellar populations, with use of the Observatory’s 100-inch telescope. Born and educated in Germany, astronomer Walter Baade worked...

Image caption: Construction of the 100-inch telescope dome, Mount Wilson Observatory. Credit: Carnegie/ Huntington Library We continue our weekly ‘Discovering Mount Wilson’ series with Chapter 14 -- a timeline of history surrounding the creation of the 'noblest weapon ever made by man,' the Observatory's famed 100-inch...

Image caption: A 20-foot (~6 meters) Michelson interferometer mounted on the frame of the 100-inch (~250 cm) Hooker Telescope, 1920. We continue ‘Discovering Mount Wilson’ with Chapter 11 and the first successful stellar interferometer on the 100-inch telescope.  This groundbreaking addition to the telescope was built by...

Image caption: Edwin Hubble seated at Mount Wilson Observatory 100-inch ‘Hooker’ telescope.  Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library.In Chapter nine of our series ‘Discovering Mount Wilson,’ we continue showcasing the discoveries made with the 100-inch telescope,...