Scientists have uncovered an extraordinary secret buried 200 km (124 miles) beneath the Appalachian Mountains in North ...

Exploration stories are rife with extreme deprivation, both physical and mental. "Sexually and socially, the polar explorer must make up his mind to be starved," wrote British polar explorer Apsley ...

An immense pocket of hot rock deep beneath the Appalachians may be a wandering relic of the breakup between Greenland and ...

Minerals from a cave in Greenland reveal that the Arctic was warm and had no permafrost, with CO₂ levels similar to today's.

Some scientific discoveries take place in a lab. Others are made deep in the rainforest, along the ocean floor or on the dark side of the moon.... Scientists explored the northernmost island of ...

The Pentagon is shifting Greenland from the U.S. European Command area of responsibility to U.S. Northern Command. Here, the Triton, a Thetis-class frigate of the Royal Danish Navy, patrols near Nuuk, ...

The Trump administration is reportedly considering moving Greenland from the responsibility of U.S. European Command to U.S. Northern Command, which is tasked with defending North America. Northern ...

(CNN) — Trump administration officials are weighing a change that would shift responsibility for US security interests in Greenland to the military command that oversees America’s homeland defense, ...