"An Arctic air mass is expected to plunge into the Central U.S. this week, with high confidence for widespread, ...

The Arctic will be busier than normal this spring, with several manhauling and kite-skiing expeditions. Here are some of ...

Large parts of the United States and Canada are in the grip of frigid winter weather, with a surge of polar air pushing subzero temperatures and dumping snow down over much of North America. The US ...

The term "polar vortex" usually refers to the gigantic circular upper air weather pattern in the Arctic region. It is a ...

Non-mixing layers of water and hydrocarbons thousands of miles deep could explain the icy planets’ strange magnetic fields.