We haven't conquered space.Not yet,We have sent some twenty men on camping trips to the moon,and USA and the Soviet Union have sent people to spend restricted lives orbiting the Earth.During the next few weeks for instance,the US space shuttle will take space lab into orbit,showing that ordinary(non astronaut) scientists can live and work in space-for a few days only.
All these are marvelous technical and human achievements.but non of them involves living independently in space.The Russians need food and even oxygen sent up form Earth.And they haven't gone for in to space.The residents of sheffield are farther from London than those of the shuttle or the Soviet's Salyut.It is only in friction ,and in space movies ,that people spend long periods living more or less normally deep in space.
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