Looking for internet in Arizona? CNET has listed the top internet service providers with reliable service and broad coverage.

Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary ...

A large winter storm bringing snow and rain is hitting Arizona, forcing closures of I-40 in Ash Fork, Kingman and Winslow.

Gas prices in Arizona are the seventh highest in the United States. Why is gas so expensive? Here's what to know and where gas is cheapest.

The Arizona Department of Transportation urged drivers to be cautious as a winter storm pummeled northern Arizona.

The name "Why" itself is perhaps the most distinctive aspect of this tiny Arizona town. At the time of its naming, state law ...

The center of Arizona is in a small town, which might surprise you. Here's what to know about the center of Arizona and how to find it.

New wind turbines would not be allowed within 12 miles of any site zoned for residential use, putting much of the state off-limits.

But how do we ensure everyone has equal access to shade? Tucson, where heatwave mortality has soared, shows a path forward.

ASU faced an uncertain future. Thrown into the Big 12, preseason polls predicted the Sun Devils to finish dead last in their new conference.

UNLV’s historic rout of Duke turned into a big win for the metro and kicked off one of the most exciting decades in Denver sports history.