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

In a cave in Romania, scientists found a bacterial strain entombed in ice that is resistant to 10 modern antibiotics. But it may also help fight superbugs.

Caves across North America and Europe exhibit a breathing effect. This phenomenon is driven by physics, specifically temperature differences causing air density variations. Cold air sinks in winter, ...

On a cold November day, Kiana Aran awoke to a surreal vision: Beyond a glass partition, she saw her mother, her cousin, and her grandmother—who had passed away years earlier—watching something on an ...