World ships: Feasibility and Rationale

@article{Hein2020WorldSF,
  title={World ships: Feasibility and Rationale},
  author={Andreas Makoto Hein and Cameron M. Smith and Fr'eed'eric Marin and Kai Staats},
  journal={arXiv: Popular Physics},
  year={2020}
}
World ships are hypothetical, large, self-contained spacecraft for crewed interstellar travel, taking centuries to reach other stars. Due to their crewed nature, size, and long trip times, the feasibility of world ships faces an additional set of challenges compared to interstellar probes. Despite their emergence in the 1980s, most of these topics remain unexplored. This article revisits some of the key feasibility issues of world ships. First, definitions of world ships from the literature are… 
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