Technology for making Death Star Sized Structures will have technical feasibility in the next 20 years

The first Death Star had a diameter of between 140 and 160 kilometers. The second Death Star’s diameter ranged from 160 to 900 kilometers. There are two near term technologies which could be applied to making Death Star sized structures: 1. Space bubbles 2. Robotic spiderfab construction Giant Space Bubbles Bubbles on earth have been …

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