At Mt. Wilson, scientists celebrate 100th birthday of the telescope that revealed the universe - Los Angeles Times
![The 100-year-old telescope at Mt. Wilson that changed cosmology forever | LAist - NPR News for Southern California - 89.3 FM The 100-year-old telescope at Mt. Wilson that changed cosmology forever | LAist - NPR News for Southern California - 89.3 FM](https://scpr.brightspotcdn.com/dims4/default/3169ec0/2147483647/strip/true/crop/6004x3698+584+0/resize/880x542!/quality/90/?url=https%3A%2F%2Fa.scpr.org%2F176525_82c0c8889da813f6baa00a48f4633730_original.jpg)
The 100-year-old telescope at Mt. Wilson that changed cosmology forever | LAist - NPR News for Southern California - 89.3 FM
![Introduction - Mount Wilson Observatory: Topics in Chronicling America - Research Guides at Library of Congress Introduction - Mount Wilson Observatory: Topics in Chronicling America - Research Guides at Library of Congress](https://www.loc.gov/rr/news/libimages/mount-wilson-observatory.jpg)
Introduction - Mount Wilson Observatory: Topics in Chronicling America - Research Guides at Library of Congress
![Mount Wilson Observatory on Twitter: "This is what the 100" primary mirror sees when the mirror shutter opens. A rare view of the Hooker telescope's interior, secondary, and tertiary mirrors courtesy of Mount Wilson Observatory on Twitter: "This is what the 100" primary mirror sees when the mirror shutter opens. A rare view of the Hooker telescope's interior, secondary, and tertiary mirrors courtesy of](https://pbs.twimg.com/media/EyAoW30VEAE4cq_.jpg)