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Yes these are unmanned missions initially.What an incredibly risky proposition. Imagine getting to Mars and finding out they can't produce enough methane for the return trip? That's assuming they could even survive the 6 month trip in the first place.
Before we talk about putting people on Mars we have a lot of preliminary exploration and fact finding to do.
I think most people (if not 100%) who go ultimately know its a one way tripWhat an incredibly risky proposition. Imagine getting to Mars and finding out they can't produce enough methane for the return trip? That's assuming they could even survive the 6 month trip in the first place.
Before we talk about putting people on Mars we have a lot of preliminary exploration and fact finding to do.