The polar vortex's blast of Arctic air from Canada brought the season's coldest weather to the majority of U.S. The vortex is ...

A rare winter storm is getting set to slam the Gulf Coast and South, with cities from Texas to Florida under Winter Storm Warnings.

A dangerous and potentially life-threatening stretch of cold weather has much of the U.S. on alert as a lobe of the polar ...

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

A dangerous and potentially life-threatening stretch of cold weather has much of the U.S. on alert as a lobe of the polar ...

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 ...

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 ...

The National Weather Service (NWS) has issued urgent weather warnings for several counties across the state, with ...

However, the especially low temperatures seen in parts of the US this month can be partially attributed to another phenomenon: the polar vortex. The polar vortex is a low-pressure system of cold ...

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.