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NASA is planning to rely on commercial communications and navigation services to support missions to the moon in the next decade, say engineers at Johnson Space Center, in Houston. The network, consisting of moon-orbiting satellites and ground stations on Earth, would initially serve robotic lunar missions by NASA, other governments, and private ventures. It would expand to provide 70 percent of the...
The first robot capable of building anything, including a replica of itself, might cost a fortune to develop; the billionth copy would be as cheap as dirt. Send some of them into space and they could build new armies out of planetary rubble and dust, then go on to construct enough spaceships and refueling stations to carry the human race to other planets and, eventually, other stars.
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