America is bracing for the coldest arctic blast of the season as a polar vortex is set to bring 'most severe' cold snap and ...

Spring - brought on by the March equinox - is only a few weeks away. You can also count down the days to spring in real time.

Winter nights in central Alaska can be brutal, lasting over 15 hours with temperatures below zero and snow in every direction. However, enduring the frigid weather can reward you with jaw-dropping ...

Every state but Hawaii, California and Florida is likely to get a taste of wind chills of 20 degrees or colder.

A new book explores how one biologist’s work at the North and South Poles changed the way he sees the world and our place in ...

More states in the northern U.S. will have a chance of seeing aurora borealis on Friday, as high-speed winds from a spot on ...

Extensive evidence, including global temperature and sea ice data, shows Earth's climate is changing due to human activity.

Firefly Aerospace 's moon-bound spacecraft has provided the closest thing to a reflecting pool in space, showing Earth as an ...