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For questions involving implemented theory or technology for travelling through space. Consider also [space-travel]. See also the tag information (click "info") for more details on when this tag applies.
2
votes
Heat shields made in space out of rocky source material - cheap way to get cargo to Earth?
I remember a nice bit from the (marvellous) book Mining the Sky, by John S. Lewis.
There were studies in how to reduce dependency on goods launched from Earth and closing as many resource cycles with …