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Photos: Kitt Peak National Observatory

Photos: Kitt Peak National Observatory

For more than 50 years, Kitt Peak National Observatory has been the crown jewel of observatories in the Southern United States, sitting atop the highest peak in the Quinlan Mountains southeast of Tucson.

KPNO, founded in 1958, shares the 200-acre mountaintop site with the National Solar Observatory, operates three nighttime telescopes and hosts 22 optical telescopes and two radio telescopes.

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