After a summer of fasting on land, the bears need to get back to their frozen home to hunt seals and bulk up. But their ...

It’s really, really cold again – as the US shivers through at least the eighth blast of air from the Arctic this winter. Here ...

Though sun halos can happen year-round, they are especially noticeable in the winter when ice-filled cirrus clouds are more common.

The arctic outbreak that has enveloped the central U.S. is hitting its peak Thursday as frigid temperatures continue to ...

In the frozen world of Antarctica, one tiny insect has mastered the art of survival. The Antarctic midge, the only insect ...