A blast of arctic air from Canada has brought the season's coldest weather to most of the United States. The system, known as a polar vortex, is forecast to bring subzero temperatures to the Midwest, ...

NASA instruments captured the moment part of the sun appeared to break off from the giant star and get swept up in a polar vortex. But according to the scientist who drew attention to it, it's not as ...

Northrop Grumman Corporation (NYSE:NOC) has delivered the second of two payloads that will be hosted on government-owned satellites to bring next-generation protected, Extremely High Frequency (EHF) ...

A powerful polar vortex sweeping across the East Coast is set to bring bone-chilling, record-low temperatures to the Big Apple this weekend, giving the region a bitter first taste of winter, according ...