LAKEWOOD, Colo. — There is a kind of polar process happening in the parking lots on the Front Range. Over time, snow turns to ice. And the icier a pile of snow gets, the harder and denser it becomes.

The five tents sitting on the white expanse of the Clark Glacier look more like a winter camping site than a scientific field camp. Skis stick out of the snow. A pot on the propane stove holds melted ...

An international team of scientists have drilled nearly two miles down into the Antarctic bedrock, extracting an ice core sample that’s estimated to be at least 1.2 million years old, they announced ...

Scientists have drilled 1.7 miles deep into Antarctica, pulling up an ice core sample that dates back at least 1.2 million years. They expect the sample to offer new insights into the evolution of ...

Analysis of core samples extracted from beneath an ice sheet indicates that the region is extremely responsive to the temperatures characteristic of today’s interglacial period. Researchers involved ...