A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to ...

A new blast of Arctic air sweeping from north to south will bring bone-chilling temperatures to millions of Americans this weekend and next week.

A polar vortex that has hit much of the U.S. with ice and snow has dealt a glancing blow to Florida and its manatee ...

A major cold blast is in store for millions of Americans as a lobe of a polar vortex will bring brutally cold temperatures to ...

A polar vortex dipping down from Siberia will bring a cold front with frigid temperatures to nearly 300 million Americans.

According to the National Weather Service, a polar vortex will impact most of the country this weekend, here is what you need ...

SpaceX has launched a pair of lunar landers for U.S. and Japanese companies looking to jumpstart business up there.

Why herds of manatees are huddling in water near America's power plants - A polar vortex that has hit much of the U.S. in a ...

At least four people have died as the brutal Arctic blast hit much of the central and eastern U.S. Newsweek's live blog is closed.

Freezing weather is expected to hit the eastern US in the coming days as the polar vortex moves ... The Gulf of Mexico and Florida could also experience temperatures below freezing.

Much of the country will be hit with extreme low temperatures over the next week as a polar vortex sends cold air down from the North Pole. Real feel temperatures throughout the northeast ...