Atmosphere of Uranus at the solstice of 1986, when "Voyager 2" passed by the planet, they were concentrated near the sunlit pole, making it dark in ultraviolet light. The outermost layer of the Uranian atmosphere, extending for thousands of kilometres, is the thermosphere/exosphere, which has a uniform temperature of around 800 to 850 K. This is much higher than, for instance, the 420 K observed in the thermosphere of Saturn. The heat sources necessary to sustain such high temperatures are not understood, since neither solar FUV/EUV radiation nor auroral activity can provide the necessary energy. The weak cooling efficiency due to the depletion
The Outermost House retreat to visit whenever he could, but soon found he did not want to leave. "[A]s the year lengthened into autumn, the beauty and mystery of this earth and outer sea so possessed and held me that I could not go," he wrote in "The Outermost House". For the next couple of years, Beston would come and go from his dune refuge, keeping extensive notes on his observations of life on the beach. His meditation on surf ("The Headlong Wave"), experiences on the winter beach, and his view of life after his beach stay were molded together into one "Year