Arizona's got sky islands in spades. But if you wind your way from the desert floor to the tree tops, that's all you'll find.

TUCSON, Ariz. (13 News)—Kitt Peak National Observatory will celebrate 60 years of public tours on September 27, after a ...

The Milky Way is now hidden from 80% of North America. At Kitt Peak National Observatory, located an hour from downtown Tucson, Arizona, atop Manzanita Bush Mountain at an elevation of 7,000 feet ...

Arizona's got sky islands in spades. But if you wind your way from the desert floor to the tree tops, that's all you'll find. But Kitt Peak's got them all beaten with a window beyond the blue.

In other news, a bill overhauling Utah's vote-by-mail system has advanced in the legislature. And, a scenic route through ...

The transforming exoplanet that was observed by the WIYN 3.5-meter telescope at the U.S. National Science Foundation Kitt Peak National Observatory has a strangely elongated orbit. Credit: Images and ...

Discovered in the 18th century, the Helix Nebula, located about 700 light-years away in the constellation Aquarius, belongs ...

Whistling and moaning, a 50-mile-an-hour (80-kilometer-an-hour) wind whipped among the telescope domes atop Kitt Peak. Just a few feet below, turning gray in the dusk, slid a river of clouds that ...

ABSTRACT Recent (1998–1999) absolute spectrophotometry of the night sky over two southern Arizona astronomical sites, Kitt Peak and Mount Hopkins, is compared to similar data obtained in 1988 at each ...