Extraterrestrial atmosphere reaching 70 m/s or more in the upper troposphere. The stratosphere and mesosphere extend from 65 km to 95 km in height. The thermosphere and exosphere begin at around 95 kilometres, eventually reaching the limit of the atmosphere at about 220 to 250 km. The air pressure at Venus' surface is about 92 times that of the Earth. The enormous amount of CO in the atmosphere creates a strong greenhouse effect, raising the surface temperature to around 470 °C, hotter than that of any other planet in the Solar System. The Martian atmosphere is very thin and composed mainly of
A Planet Called Treason destroy all of the Ambassadors. With no way for any Family to get iron, Lanik concludes, the wars would end and there would be peace. The regions of Treason are named after each of the banished inhabitants. The occupations of the founders are listed (where known). The regions are (alphabetically): A Planet Called Treason A Planet Called Treason (1979) is a science fiction novel by Orson Scott Card. It was originally published by St Martin's Press and Dell Publishing Co. After being heavily revised, the book was republished under the title Treason (1988) by St. Martin's Press. The premise of