Federal regulators are trying to find out whether beef from sick cows reached the human food supply through a Central California slaughterhouse near Fresno.

Governor Jan Brewer criticized comments made by Missouri GOP Senate Candidate Todd Akin about rape, but stopped short of joining other Republican officials in calling for him to drop out of the race.

The Mayo Clinic plans to integrate its cancer treatment programs in Phoenix. The project will add on to a facility already under construction. 

Romaine lettuce shipped to 19 states, including Arizona, may be contaminated with E. coli bacteria.

Some Tempe residents have noticed a change in the smell and taste of their tap water, but the city says there’s no reason to worry. 

Phoenix Mayor Greg Stanton will be joining about 100 young people Monday night to knock on doors in a voter registration drive.

Bad weather accounts for 70 percent of all aircraft delays, but a new radar system may help reduce delays and costs due to weather.

The Arizona Supreme Court has ruled an initiative that would create a so-called “top two” primary will appear on the November ballot, overturning a lower court decision. 

Funding could be cut for three telescopes at Kitt Peak National Observatory near Tucson. It could mean the loss of 70 jobs.