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

A cave in northern Greenland shows the Arctic once thawed under mild conditions. Scientists say even small warming can trigger huge changes.

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 ...

In 1492, Columbus sailed the ocean blue. But we’ve known for a long time that Columbus wasn’t the first European to set foot ...

Remote Faroe Islands are in talks to add an extra undersea internet cable to safeguard communications from sabotage ...

(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, ...

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 ...

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, ...