This process — called sublimation — creates hard, sharp spikes of snow ... equator has baffled scientists ever since: Giant spires of methane ice that stand as tall as a NYC skyscraper.

Hundreds of millions of years ago, Earth plunged into a deep-freeze that turned the planet into a giant ball of ice. Now ... could be declared a "golden spike" — a marker showing a transition ...

Researchers have discovered huge landforms deep beneath the North Sea that suggest the region was swallowed by a giant ice sheet toward the middle of the last ice age. The scientists captured ...

It may be the hottest thing to hit the ice fishing scene since fish-finding sonars started showing up on the ice. They are known as spikes, but it has nothing to do with something to keep you from ...