Its the five-year anniversary of the devastating February 2021 winter freeze in Texas, but could an event like that ever happen again?

Scientists have long debated whether most of Earth's vital liquid was delivered via icy comets or was homemade ...

Five years after the 2021 Texas freeze, here's what caused it, how it collapsed the power grid and why a similar event could ...

The East may have been plunged into a deep freeze this winter, but a hot, dry winter in the West is raising alarms among ...

A forecast map reveals which states can expect to see "persistent cold" in the weeks ahead, after experts said the polar vortex would unleash waves of icy air across parts of the U.S. through January.

This story has been edited to correct an error. Judah Cohen is affiliated with the Massachusetts Institute of Technology. Our old wintertime friend the polar vortex ...

With over 170 million Americans facing below-average temperatures, even colder air may be on the horizon thanks to the displacement of the polar vortex that will lock in the feel of winter and park ...

Don't be fooled by the string of uneventful weather — the polar vortex is rebooting and will take another swing, or several, at the greater Philadelphia region, leading to a turbulent weather pattern ...

As one blast of Arctic air pushes out to sea, already a new surge of cold air, driven by a breakdown of the polar vortex, is likely to expand from central Canada and through the midwestern and eastern ...

Just a few days into December, an arctic air mass has swept into the United States, bringing subzero morning lows and daytime highs stuck in the teens for 30 million Americans in the Northern Plains, ...