The donors with employees in Arizona include tech firms, the nation’s largest railroad and a prominent defense contractor.

More data centers may be built in the Tucson area as well as the controversial Project Blue — one slated for Davis-Monthan Air Force Base and another complex in the ...

Yamamoto is the fourth pitcher to win Games 6 and 7 of the same World Series, matching Randy Johnson in 2001, Harry Brecheen in 1946 and Ray Kremer in 1925. He and Johnson are the only pitchers since ...

Fifa Laopakdee is headed to the Masters and the British Open after a stunning rally to win the Asia-Pacific Amateur on the third playoff hole. Laopakdee becomes the first Thai winner of ...

A Wild West historian says she uncovered evidence in a family diary suggesting Wyatt Earp’s first gunfight happened near Orin ...

Union Pacific delivered 7% growth in its third-quarter earnings Thursday as its CEO continues to make the case for the ...

Union Pacific is positioned for a strong rebound, driven by operational efficiency, a pending merger with Norfolk Southern, ...

Union Pacific said it expects to submit papers for its $85 billion merger with Norfolk Southern to a regulator as soon as end ...

Union Pacific Corporation is set to acquire Norfolk Southern, creating the first transcontinental railroad giant. Learn more ...

An investigation is underway after a Union Pacific train derailed in Benson on Tuesday morning. According to officials, ...

Union Pacific delivered 7% growth in its third-quarter earnings Thursday as its CEO continues to make the case for the ...