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Gravitational lens found in the DESI Legacy Surveys data

Triple Conjunction over Kitt Peak National Observatory

Gemini Observatory at the 2017 Onizuka Day

Birds sit atop the WIYN 0.9-meter Telescope on Kitt Peak National Observatory

Sunset at the WIYN 0.9-meter Telescope on Kitt Peak National Observatory

Night sky over the WIYN 0.9-meter Telescope on Kitt Peak National Observatory

KPNO 2.1-meter Telescope

The Nicholas U. Mayall 4-meter Telescope

The Nicholas U. Mayall 4-meter Telescope at sunset

The Nicholas U. Mayall 4-meter Telescope interior

The Nicholas U. Mayall 4-meter Telescope interior

Night sky over the Kitt Peak Visitor Center 0.6-meter Shreve Telescope

The Visitor Center Levine 0.4-meter Telescope in front of the WIYN telescope

16-inch telescope at Kitt Peak National Observatory

Cerro Tololo Inter-American Observatory