So far, it appears Mars One will be one-way mission to Mars, to establish a colony with no options to return to Earth, astronauts staying on Mars to the end of their lives.

But does that mean the mission ends with death of the last astronaut, or is it planned to be expanded indefinitely, with continued shipments, colony expansion and new arrivals?

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    $\begingroup$ For an end-of-mission there first has to be a start-of-mission. Mars One is not credible. $\endgroup$ – pericynthion Oct 4 '17 at 19:14

Mars One states on their website that the first crews living quarters arrive, 26 months later the first crew arrives, a few weeks later the second crew living quarters arrive, 26 months later the secon crew arrive, and on and on as additional living quarters and crews continue to arrive. Also eventually martian colonists will start having children in the colony.


Supplies will be needed and in particular spare parts will be needed as the base grows, in fact until Mars based in situ manufacturing is able to cover most of the spare parts, the base is unlikely to be able to grow very much if at all in the beginning.



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