How would you design an American English dialect for a futuristic, terraformed Mars?

It's easy to imagine what American English might sound like as the language of the moon or even a space station - probably just a further-thawed-out and more standardized version of the English spoken on Earth, with a few loanwords from scientific, technical, and astronautical terminology. <br><br>But what about Mars? The red planet is a large celestial body with enough gravitation to hold onto its atmosphere, and enough atmosphere to create a sound environment in which we could reasonably imagine the formation of a unique dialect. It would need to form solely among English-speaking humans, and it would probably need to have formed in a society that was relatively isolated from Earth - a large, self-sustaining Martian colony, for example, or a Martian nation with its own government and economy. That would mean it would be a very long-term process, and would probably be quite different from English by the time it was fully formed.<br><br>So, what might this dialect look and sound like? What are the physical and historical conditions that would shape its development? What would the effects of being in an environment with less gravity be, and what are the most obvious changes that would result from a Martian dialect being surveyed as part of a global linguistic dialectology of English? How would the need for mutual intelligibility with Earth English influence the rate of its development?<br><br>What if we were to introduce non-English-speaking colonizers from elsewhere - Spanish-speakers from Latin America, Portuguese-speakers from Brazil, Africans from Portuguese-speaking Mozambique or English-speaking Ghana, or perhaps Chinese from the PRC? How would their presence affect the rate and course of the development of a Martian dialect?<br><br>What would the profile of such a dialect look like if it were to develop in part from those who were "born on the rocket" and arrived on Mars as children, or if the Martian colonization effort were to be spearheaded by a coalition of multinational corporations? What social factors would play a role in shaping the dialect - different economic classes, for example, different professions or occupations, or perhaps different cultural or ethnic identities? What about different regions on Mars, or different Martian city-states or nations?<br><br>And what if we were to imagine this dialect not just as spoken on Mars, but throughout the Solar System? How might it evolve as the language both of space travel and of Mars-based settlements on the moon, in the asteroid belt, or on the moons of Jupiter? How might loanwords from other languages used in space travel and colonization affect the overall shape of the language?<br><br>Finally, how would the Martian dialect of American English overlap with other dialects of English, and what historical events or periods would serve as a turning point for the dialect - for example, if Earth were to be hit by an asteroid and the majority of the population of English-speaking humanity were to survive on Mars, how would this dialect be received as "the" global dialect of English, and what features of other dialects might be retained or adopted in response to the changed social and political context?<br><br>Eventually, I'd love to hear your ideas as to what an English dialect in this context might look and sound like, but first, let's talk about the environments and social factors that would shape its development.