After a powerful storm tears through a community, a few big questions often follow: Was it really a tornado? And if so, how strong was it? That answer doesn't come instantly. Instead, meteorologists ...

Mars’ north polar vortex locks its atmosphere in extreme cold and darkness, freezing out water vapor and triggering a dramatic rise in ozone. Scientists found that the lack of sunlight and moisture ...

Though global temperatures are warming, winters in the Northern Hemisphere are still marked by cold snaps and extreme snowfall events — sometimes to an unprecedented extent, such as the 2021 deep ...