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
Bad Astronomy praised "Bad Astronomy" as the "ideal accompaniment for International Astronomy Day (April 20)" and quoted the author, stating that it is "dangerous to be ignorant about science. Our lives and our livelihoods depend on it." In an October 2002 review for "Sky & Telescope", Bud Sadler praised "Bad Astronomy" for its humor, "easily understood explanations" and "simple demonstrations" to explain what he called "the most egregious examples of ill-informed astronomy." Part I of "Bad Astronomy", "Bad Astronomy Begins at Home," focuses on examples of astronomical misconceptions that are typically associated with the household or classroom, including the effect of the