The Man Who Sold the Moon Moses must have looked, when he gazed out over the promised land." The Man Who Sold the Moon is also the title of two collections of Heinlein's short stories. Both collections include "Let There Be Light", "The Roads Must Roll", and "Requiem"; the first also includes "Life-Line" and "Blowups Happen". Although the science fiction film "Destination Moon" is generally described as being based on Heinlein's novel "Rocket Ship Galileo", the story in fact bears a much closer resemblance to "The Man Who Sold the Moon". However, the technology of "The Man Who Sold the Moon" is very different: its rocket
Craters of the Moon (geothermal site) of the Moon are the result of hydrothermal eruptions. The pressure of the steam beneath the surface exceeds the pressure exerted by the weight of the overlying ground. This results in an explosion. A mixture of hot water, steam, hot mud and pumice is ejected into the air. Material may be blown up to 100 m, leaving behind holes or craters as deep as 20 m. Hydrothermal eruptions occur about once a year. The openings in the earth surface, where geothermal steam and gases are emitted, are called fumaroles. These vary in size from one centimetre to half a meter