Stunning pictures of the polar vortex in the US
The Midwest is the most affected area
© Getty Images
TRAVEL Polar vortex
A weather phenomenon called a polar vortex is to blame for the extreme cold temperatures that have recently hit the United States and Canada. The Midwest is the most affected area, with temperatures plummeting to below -46°C (-50°F) in some areas. Despite the biting cold, it is creating some pretty gorgeous landscapes.
Browse through the gallery and see some amazing pictures of the freezing weather.
MUSIC Music down under
The 1980s: Top 10 musicians down under
How America's biggest companies were founded
CELEBRITY Neil Young
Are Neil Young and Daryl Hannah married? How this Hollywood couple kept it quiet
Under the sea: Mexico's colorful coral reefs
Vlad the Impaler and the legend of Dracula
The most inventive universities in the world