These estimates, drawn from the location data of three billion Facebook users, provide a view of human migration in ...

Another nationwide protest sponsored by the 50501 movement is scheduled for Saturday, April 19. Here are some of the cities ...

The U.S. Army will take control of almost 110,000 acres of federal land along the U.S.-Mexico border to support Border Patrol operations.

A long-lost slab of Earth’s crust may be pulling away the bottom of the oldest part of North America, scientists say ...