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
A Planet Called Treason This mission is only the beginning of the adventure for Lanik, who discovers the secrets of the most powerful nations and at the same time gains additional abilities to save his people and determine the fate of his planet. Lanik travels to many of the regions of the planet Treason throughout the book, and discovers that those residing in different regions have different powers or capabilities. He first passes through the land of the Ku Kuei while on his way to Nkumai, learning that they can control the flow of time in a bubble extending out from themselves. When he