Kitt Peak National Observatory marks 60 years of public tours
TUCSON, Ariz. (13 News)—Kitt Peak National Observatory will celebrate 60 years of public tours on September 27, after a ...
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Dark energy turns out to be even weirder than we thought
The U.S. National Science Foundation Nicholas U. Mayall 4-meter Telescope at Kitt Peak National Observatory (KPNO), a Program of NSF NOIRLab, beneath streaking star trails, created by long ...