The southwestern monsoon has swept across the landscape every summer as far back as the last ice age, when mammoths roamed the continent and ice sheets edged below what is now the Canadian border, according to a newly released study by University of Arizona researchers.
The US states of Texas and Arizona on Friday announced plans to send National Guard troops to the southern border with Mexico after President Donald Trump ordered a thousands-strong deployment to combat drug trafficking and illegal immigration.
The US states of Texas and Arizona have announced plans to send reserve troops to the border with Mexico after President Donald Trump ordered the deployment of thousands of soldiers to combat illegal immigration and drug trafficking.
An Uber self-driving car has hit and killed a woman crossing the street in Arizona, marking the first time a self-driving car has killed a pedestrian and dealing a potential blow to technology which is expected to transform transportation.
Republican Senator from Arizona Jeff Flake has slammed US President Donald Trump's declaration that media is ‘the enemy of the people,’ saying it is borrowed from Soviet revolutionary leader Joseph Stalin.
A fight is intensifying in the Arizona Legislature over the Senate leader's refusal to restore a program providing health insurance to poor children, a stance that would maintain the state's position as the only one in the nation that doesn't participate in the plan.