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I'm working on a story set in a generation ship traveling through the stars. Its propulsion is a solar sail, which will accelerate it over many decades to a substantial fraction of the speed of lig...
#1: Attribution notice removed
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System
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2020-06-01T14:13:48Z (over 4 years ago)
Source: https://worldbuilding.stackexchange.com/q/36280 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/