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Chapter 127: Fortress of Solar System
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... he planet, hundreds or even thousands might be built on larger ones, while smaller ones would still need dozens.
Adding these up, it amounts to tens of thousands of engineering projects. Calculating a standard interstellar gun battery fortress at a total mass of 50,000 tons, this adds up to billions of tons of mass.
In addition to this, there are unmanned spacecraft!
Unmanned spacecraft that are convenient, flexible, maneuverable, and can automatically form battle formati ...
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