Kitt Peak National Observatory, a a program of the National Science Foundation's NOIRLab, hosts the recently retired McMath-Pierce Solar Telescope. According to NOIRLab , the solar telescope ...

Technicians at Kitt Peak National Observatory's Cherry Ave. shops on the University of Arizona campus, look over the steel cell upon which the 80-inch mirror will be mounted.

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.

How the pioneering scientist, and namesake of an enormous new telescope, forced astronomers to rethink the universe.

Kitt Peak National Observatory is in the Sonoran Desert, in Tucson, Arizona. The area was chosen for its access to dark skies and its altitude — over a mile (2.1 kilometers) ...

The Rubin team in central Chile is operating with cooperation from a vast global network with major centers in Lyon, France; ...

New evidence suggests the universe might not behave as expected, raising questions about the costs of being wrong.

Everything in space – from the Earth and Sun to black holes – accounts for just 15% of all matter in the universe . The rest ...