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Here's a starting point: the Interplanetary Transport Network (ITN): Artistically gratuitous representation. Not to be taken literally. The green swoops are odd and potentially unimportant. The ...
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#1: Attribution notice removed
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System
·
2020-06-01T14:13:43Z (over 4 years ago)
Source: https://worldbuilding.stackexchange.com/a/10397 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/