Ice cores are like frozen time capsules that could tell a lot about Earth's past. Researchers drill deep into the Antarctic and Greenland ice sheets to retrieve ice cores and study past climate.

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 ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...