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Investigators are intensifying their efforts to solve the disappearance of Nancy Guthrie with new developments in DNA testing ...

On Feb. 3, two days after Nancy Guthrie disappeared, a Pima County helicopter was flying low to the ground, just above Guthrie's home in the Catalina ...

University of Arizona students are set to benefit from a significant upgrade to their nanofabrication core facility. A $35.5 ...

A Taiwan-based startup is making waves in Southern Arizona, adding to the region's burgeoning semiconductor ecosystem. Jiann ...

The Parish in Tucson is turning up the heat and the volume as it welcomes the community to celebrate Mardi Gras this Fat Tuesday.

Pima County is making moves to restrict U.S. Immigration and Customs Enforcement (ICE) operations on its property. The county ...

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The search for Nancy Guthrie, the 84-year-old mother of TODAY show co-host Savannah Guthrie, is in its third week. Anyone ...