Colonization of trans-Neptunian objects: Difference between revisions

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Rescuing 1 sources and tagging 0 as dead.) #IABot (v2.0.1
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==External links==
*[https://web.archive.org/web/20150924061340/http://www.orbitalvector.com/Interstellar%20Flight/Stepping%20Stone/Stepping%20Stone.htm ''Orbitalvector.com'']
{{Use American English|date=January 2014}}