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Q&A Best Rocket Engine for a 12 Light Year Journey?

I'm writing a Colonization story, and I'm trying to determine which propulsion system would be the best option. The destination is Kapteyn b, 12.76Ly from Earth, and our 40K colonists will be in Cr...

3 answers  ·  posted 6y ago by Hewholooksskyward‭  ·  last activity 6y ago by Hewholooksskyward‭

Question space spaceships technology ships science-fiction engineering