Dr. Nicholas U. Mayall, director of the Kitt Peak National Observatory from 1960 to 1971, is seen here observing at the prime focus of the 4-meter telescope on 2 March, 1973.

The dim glow of safety lights shines out of the door of the WIYN 0.9 meter telescope where a tour group is using the instrument at Kitt Peak National Observatory in 2010.

Using the WIYN 3.5-meter telescope at the U.S. National Science Foundation Kitt Peak National Observatory, a Program of NSF NOIRLab, astronomers have discovered the extreme orbit of an exoplanet ...

TUCSON, Ariz. (AP) — Organizers of a plan for the largest telescope at Kitt Peak west of Tucson won a $2.1 million grant for the project. At least 16 dead in flooding and tornadoes as storms ...

Kitt Peak became the birthplace of the National Optical Astronomy Observatory (NOAO), and the 4-meter Mayall Telescope was its flagship. Construction began in 1968, the same year Apollo astronauts ...

Kitt Peak is also home to a pair of Spacewatch telescopes helping to find any Near-Earth-Asteroids that could threaten our planet. Plus, the 3.5 meter WIYN telescope is looking for other planets ...

On Friday, Kitt Peak National Observatory began a limited reopening program to welcome the public back after a three-year closure as a result of the COVID-19 pandemic and the Contreras Fire.

The 4-meter Mayall telescope is housed in an enormous 18-story building at the top of Kitt Peak, some 6,800 feet high. Before sunset on March 18, 2014, the dome opens to the skies in preparation ...

The Kitt Peak National Observatory has one of the largest arrays of optical and radio ... including an 18-story telescope — the Nicholas U. Mayall 4-meter Telescope — that can be seen from ...

Kitt Peak National Observatory is an astronomical research facility located on the land of the Tohono O’odham Nation in ... the Hiltner 2.4-meter Telescope, the McGraw-Hill 1.3-meter ...

At Kitt Peak National Observatory near Tucson, Arizona, a telescope views far into the cosmos recording the locations of millions of galaxies. The four-meter telescope is currently mapping the ...

Pictured: the Visitor Center Levine 0.4-meter Telescope Kitt Peak was formerly closed due to the pandemic and the 2022 Contreras Fire, which charred trees and seared the road leading to the ...