Using Department of Homeland Security data, Newsweek created this map to show the top 10 states where undocumented immigrants live.

A team of USGS researchers in Flagstaff are working to develop an all new geologic map of the Grand Canyon region.

President-elect Donald Trump suggested renaming the Gulf of Mexico after the U.S. But can he really do that? Here's how place names are determined.

Partly cloudy with a high of 69 °F (20.6 °C). Winds from WNW to W at 4 to 10 mph (6.4 to 16.1 kph). Night - Partly cloudy. Winds variable at 7 to 9 mph (11.3 to 14.5 kph). The overnight low will ...

Researchers from Princeton University and the University of Arizona have created a simulation that maps underground water on ...

Sunny with a high of 63 °F (17.2 °C). Winds variable at 4 to 6 mph (6.4 to 9.7 kph). Night - Clear. Winds variable at 5 to 6 mph (8 to 9.7 kph). The overnight low will be 39 °F (3.9 °C ...

The latest data on U.S. COVID-19 test positivity rates shows a complicated picture as we head towards the new year.

Arizona is a state with a rich history and culture that is reflected in its numerous historic landmarks. From ancient Native ...

While the 7,400-square-foot, state-of-the-art facility impresses, FanDuel AZ's superb mobile sports betting app, and welcome bonus have put it on the Arizona sports betting map. New users can ...

Mostly sunny with a high of 71 °F (21.7 °C). Winds variable at 12 to 19 mph (19.3 to 30.6 kph). Night - Clear. Winds from NNE to N at 6 to 10 mph (9.7 to 16.1 kph). The overnight low will be 47 °F ...