TSMC, the world’s largest semiconductor manufacturer, has achieved better yield in its new Arizona factory than its Taiwan ...

U.S. presidents and vice presidents have visited Arizona for work and play since the 1920s. Here's where they stay, from ...

During a webinar on Wednesday hosted by the Potomac Institute for Policy Studies, Taiwan Semiconductor Manufacturing US ...

A Phoenix park got over 65 new trees Friday in hopes of reducing rising temperatures in the Maryvale neighborhood.

Voters can decide between two radically different philosophies over how to manage utilities and energy use in Arizona.

Ten states elect their public utility commissions, which make big decisions about energy. This November, the stakes are high, especially in Arizona and Louisiana.

Part of State Route 87 northeast of metro Phoenix was temporarily closed after a crash on Friday morning, authorities said.

According to the Arizona Department of Public Safety, a vehicle rolled over around 3:30 a.m. on SR 87 northbound near Bush ...

Electricity rate increases for two big utilities including Tucson Electric Power accelerated in recent years, intensifying ...

Two adults and a young girl are hospitalized following a rollover crash on an East Valley highway early Friday morning.

Such was the challenge issued when an Arizona snake catching service shared a photo from one of its calls on Facebook and ...

Aside from states voting on marijuana, Massachusetts voters will have the chance to vote on the legalization of psychedelics on Tuesday, Nov. 5.