Arizona The Grand Canyon is a testament to the earth's artistic powers, with its sprawling vistas and breathtaking colors.

With threats of avian flu and lead poisoning, biologists are working overtime to care for a species that nearly went extinct.

After three straight blowout victories, the Wildcats needed poise and a little bit of luck Tuesday night to extend their winning streak Tuesday night against Arizona State at Desert Finance Arena ...

In the Arizona desert, researchers are learning so much more about the peoples who have inhabited this land since antiquity ...