Protection from radiation should be the first conern and that likely means the “city” should be underground.

Another scenario to be considered is that Mars will be populated by a small cadre of humans. There will be no mass exodus of humans from Earth coming to reside on Mars. the martian population will be developed from a smaller group of humans and genetic materials shipped to Mars. Thousands of colonists is unlikely to be the case.

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Engineer and veteran, 13 years of Design Engineering, 20+ years in Software Engineering, Go enthusiast. I read a lot, write some too, ivank2139@protonmail.com

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