A fresh shot of Arctic air could bring the coldest air of the season for many this week, according to AccuWeather ...

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

Newly-released images of the lunar south-polar region obtained by ESA’s SMART-1 are proving to be wonderful tools to zero-in on suitable study sites for potential future lunar exploration missions.

The northern and southern hemispheres of Enceladus are seen in these polar stereographic maps, mosaicked from the best-available Cassini and Voyager clear-filter images. Each map is centered on one of ...

A displaced polar vortex in Canada is set to unleash three waves of Arctic air through mid-December, "delivering the coldest conditions of the season so far," forecasters at AccuWeather said. "The ...