The milestone “signal(s) progress toward reducing emissions while maintaining mission readiness,” according to Lockheed ...

An Arctic blast is set to hit most of the U.S. this weekend and into next week as the polar vortex pushes frigid temperatures ...

The most unusually cold air in the Northern Hemisphere will be over the United States early next week, bringing dangerously ...

The week began with a biting cold snap that hammered much of the U.S., the product of a jet stream that slips out of its ...

Here's how the polar vortex, and climate change ... this Bengal tiger mother must find food for the entire family. The air we breathe can have profound effects on our physical and mental health.

The Airport films have long been credited with popularizing the disaster movie genre, but their influence also helped to establish the airplane thriller as a subgenre all its own. If you want pure ...

This transcript has been edited lightly for clarity: Texas Standard: With this polar vortex hitting Texas, as well as other parts of the country, it makes sense that natural gas prices might be moving ...

Parts of all states in the Lower 48 woke up to subfreezing temperatures Tuesday due to a weather pattern that will keep arctic air in place across the eastern half of the country at least until the ...

Basically, the term polar vortex describes a large area of low pressure and cold air that usually sits at both of the Earth’s poles, according to the National Weather Service. It becomes ...

The polar vortex of ultra-cold air usually spins around the North Pole, but it sometimes plunges southward into the U.S., Europe and Asia. Studies show that a fast-warming Arctic is partly to ...