Besides hiding from enemy drones, Norwegian reconnaissance soldiers trial their own unmanned craft to spy on adversaries.

Ancient Arctic caves hold secrets of a warmer past. Mineral deposits show the region was once free of permafrost, ...

Reindeer herders in a Russian Arctic archipelago have found an immaculately preserved carcass of an Ice Age cave bear, researchers said Monday. The find, revealed by the melting permafrost, was ...

In the heart of New Mexico’s Zuni Mountains, the Bandera Volcano Ice Cave stands as one of nature’s most perplexing and intriguing wonders. While the surrounding desert swelters under summer heat, ...