A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by ...

These type of polar vortex disruptions — stretching or moving entirely out of the North Pole — are happening more frequently, ...

A surveillance camera shakes as a magnitude 6.8 earthquake rocks the northern foothills of the Himalayas near one of Tibet's ...

The next round of bitter cold was set to envelop the southern U.S. on Tuesday, after the first significant winter storm of ...

The plunging polar vortex is bringing subfreezing temperatures to some of the southernmost points of the U.S. A forming storm ...