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Space elevator

"Orbit, all passengers alight!"

Picture: NASA, public domain

Arthur C. Clarke and other science fiction authors already imagined what it would be like to have earth-dwellers take an elevator directly up into space. This notion is only half as crazy as it sounds. Various companies and research institutes in the U.S. are in fact working on the development of such an elevator and are not too many steps away from turning fiction into science

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