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Not without artificial gravity or some other outside source. Your mega structure large enough to have an earth sized pocket is going to have a lot of mass. Something that big is going to need futur...
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#1: Attribution notice removed
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System
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2021-03-30T23:53:14Z (over 3 years ago)
Source: https://worldbuilding.stackexchange.com/a/27463 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/