Mysterious Tracks Found in Greenland's Tunulliarfik Fjord

NASA's Landsat 9 satellite captured images of Tunulliarfik Fjord in Greenland, revealing several long, straight lines connecting the towns of Narsarsuaq and Qassiarsuk, and running the length of the fjord. Many of the tracks were likely produced by vehicles, such as snowmobiles, according to scientists at NASA's Goddard Space Flight Center. The track that runs the length of the fjord is at least 20 kilometers long. The fjord's waters are ice-free much of the year, except for floating icebergs that have broken off from the glacier to the north.