When you think of the United States, a few things come to mind: Hollywood, Disneyland, New York, the Grand Canyon, NASA, Las ...

NOGALES, Ariz. — It's been two weeks since President Donald Trump took office and announced a long list of executive orders, ...

The town of Arivaca is a small but diverse community. Located along the Altar Valley, border crossers have utilized the natural pathways.

In Colorado City and Hildale, the place is clearly changing. There's new construction around every corner. Modern apartments sit next to homes and cinderblock walls built for FLDS polygamous families.

The Tucson Samaritans offer humanitarian aid near an opening in the border wall to provide food, water, and shelter while migrants wait for U.S. Border Patrol.

Stunning discoveries and fresh breakthroughs in DNA analysis are changing our understanding of our own evolution and offering a new picture of the "other humans" that our ancestors met across ...