See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A polar vortex could bring cold winds to much of the U.S. as the new ...

An optical illusion is a visual phenomenon where our perception of an image differs from objective reality. This image is perceived as a visual impression of a swirling tunnel or vortex effect. These ...

The Great Lakes and Northeast are bracing for another cold shot later this month — down to single digits in places — as a polar vortex split in the stratosphere nudges frigid Arctic air southward.

El Niño's record-breaking force could enter a chaotic dance with another wintertime powerhouse: The polar vortex.

A potential wobble in the polar vortex could bring Arctic air to Michigan and the northern U.S. around Thanksgiving. A weakened polar vortex, combined with other atmospheric patterns, increases the ...

Optical vortex beams, characterized by their helical phase fronts and orbital angular momentum (OAM), are pivotal in applications such as high-capacity communication, optical manipulation, and quantum ...