1) Is a return trip possible?
2) If a return trip is not possible, what would be needed for a permanent settlement?
- What types of people would you send?
- Same sex?
- How would you establish a permanent supply of air, water and food.
- How would you deal with waste, (especially pee and poo) if there are no bacteria on Mars to help break things down?
- How would you keep the settlement warm?
- Would everything go on one journey, or would you send uncrewed cargo vessels first?
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