Kitt Peak National Observatory, Tucson, Arizona, USA, at night. With 23 telescopes, this is the largest collection of astronomical instruments in the

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Kitt Peak National Observatory, Tucson, Arizona, USA, at night. With 23 telescopes, this is the largest collection of astronomical instruments in the world. From left to right the telescopes seen here are: the Spacewatch telescope, the Spacewatch telescope, the Bok telescope (operated by the Steward Observatory, University of Arizona) and the Mayall 4-metre telescope.

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Size: 5100px × 3430px
Photo credit: © DAVID NUNUK/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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