Scientists were taken aback, earlier this month, when they noticed that the Arctic's polar vortex has changed its course and has started spinning in the opposite direction. This unexpected shift ...

(CNN) — High above the North Pole, in a slice of atmosphere rarely noticed and even less understood, a transformation is underway. Over the next 10 days, changes in the stratosphere will upend weather ...

When architecture is enmeshed with art, the outcomes are very often a delightful melody of functionalism and aesthetic appeal. Picture 500 freely rotating wind direction indicators, similar to arrows, ...

Shown are four examples of the double-vortex states investigated with opposite vorticity. In each disk, the flat yellow arrows represent the sense of the circulation of the in-plane magnetization ...