On a flat map, Greenland looks like a lonely white expanse at the top of the world. On the right projections, it jumps out as the hinge between North America, Europe and the Arctic Ocean, a place ...

Audio is not provided for this article. In recent years, researchers have shown that variations in GPS and Galileo signals after they reflect off Earth’s surface—an approach known as GNSS ...

Earlier this year our international team of scientists from the Refuge Arctic consortium departed Iqaluit, Nvt. on a 56-day research expedition in the far north. We were sailing aboard the icebreaker ...