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3D printing ecosystem in space

The actual launch of objects to orbit will be improved by using electromagnetic railguns to put raw materials into orbit, those materials won’t be affected by the huge accelerations and temperature changes of those kind of launches, and the cost will fall ten fold. Once in space, enormous 3D printers will use those materials to build spaceships and entire ecosystems that humans will be able to use. 

I agree
39
I don't agree
4
Ashit Mendhe it will happen 11 May 2019
Monkeytum Not by 2050. 05 Apr 2019