The Patriot air defense system is capable of intercepting tactical ballistic missiles, cruise missiles, aircraft and drones.

Revised definitions for four scientific units — the kilogram, the kelvin, the ampere and the mole — come into force today. The change, decided last year, means that all the base units of the ...

The incident has prompted the Air Force's Global Strike Command to pause use of the New Hampshire-made M18 pistol.

The base is home to the 9th Reconnaissance Wing and the U-2 “Dragon Lady,” a high-altitude spy plane that gathers intelligence from around the world. These aircraft have even been used ...