Satellite Eye on Earth: November and December 2017 - in pictures

Winter solstice, night lights and interesting islands are among the images captured by Nasa and the ESA last monthDust blowing out of the Copper River valley on Alaska’s south coast. The dust plume was likely comprised of fine-grained loess, which was formed as glacial ice moved over the area and ground the underlying rock into a powder. Dust storms in southern Alaska generally occur in late autumn, when river levels are relatively low, snow has not yet fallen, and the layers of dried, loe