House Committee on Public Safety has sent the debate over legalizing edible medical marijuana to the full House floor.

Biomedical research is undergoing a sea change, driven in part by federal funding requirements that studies consider biological sex as a factor. Part two of this two-part Arizona Science Desk series explores this cultural shift.
Part 1: Personalized Medicine Propels New Understanding Of Sex Differences →

Tucson City Council voted Wednesday night to support the small town of Nogales, Arizona, in its fight with the Homeland Security Department and the U.S. military on the Mexican border.

An independent federal investigator has said nobody knows how many migrant families were separated before last year’s zero-tolerance policy on the U.S.-Mexico border that led to court-ordered reunifications. But the ACLU wants the reunification order expanded to include them all.

Since the Phoenix VA became the flashpoint for inadequate care, Arizona's congressional members have been involved with attempts to bring improvements. At the center of those efforts has been Sen. Kyrsten Sinema​.

Under a bill moving through the Arizona Legislature, schools would be allowed to reward teachers whose students pass Advanced Placement exams. But some experts have criticisms of AP courses and tests.

Phoenix is the 22nd most congested city in the country, according to a new global analysis.

The images of polar bears nearly stranded on cracking glaciers or effects of climate change on indigenous communities aren’t hard to find. Some of those photographs from around the world were taken by Cristina Mittermeier.

Homelessness is a national emergency that hits the state of California especially hard. Yet despite a bond measure that gives over a billion dollars to help the nearly 50,000 homeless residents, city officials are finding that they can't spend the money quickly or effectively enough to make an adequate dent in the crisis.