China had protested what it called "close-in reconnaissance" of Chinese territory by the U.S. military in the past.

Wildfire smoke creates fine particulate matter that can linger in the atmosphere and spread from coast to coast. According to the US Environmental Protection Agency (EPA), in large quantities ...

It's Christmas Eve, and Santa Claus is suiting up for his annual voyage from the North Pole to households around the world. In keeping with decades of tradition, the North American Aerospace ...

Santa Claus made his annual Christmas Eve journey from the North Pole to households around the world and, in keeping with decades of tradition, the North American Aerospace Command, or NORAD, once ...