Kitt Peak Observatory's second chance at life | Astronomy.com
The Arizona Radio Observatory 12-meter Telescope at Kitt Peak National Observatory | NOIRLab
Telescope domes at the Kitt Peak National Observatory in Arizona Stock Photo - Alamy
Large Binocular Telescope - Wikipedia
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File:Gregorian reflecting telescope, Pallant, London, c. 1825 - College of Optical Sciences - University of Arizona - Tucson, AZ - DSC08632.jpg - Wikimedia Commons