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Colonize Mars - part 2, surviving the trip

2 Jul 2016, 04:48 UTC
Colonize Mars - part 2, surviving the trip
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Proceeding along the path to colonizing Mars. Part 1 described two possible super-heavy lift rockets constructed on paper with mostly reasonable assumptions. Part 2 will cover the transit habitat. I've already discussed the hazards involved in a manned trip to Mars in previous posts, but the two most important factors are radiation and microgravity. Less critical but still important are life support, food supplies, medical service, psychological health, maintenance and cost.Read on after the break to see how these challenges can be addressed.Microgravity There is only one known way to avoid the sweeping decay of microgravity on the human body: simulate gravity by spinning. We don't yet know how much pseudogravity is required. (From this point forward I will simply say gravity when I mean artificial gravity.) Since this project focuses on colonizing Mars we have to assume that Martian gravity is sufficient for long-term human health. That's important because there are limits to how fast a structure can spin before the passengers can't handle the motion sickness. A bigger structure can spin slower for the same gravity or can spin at the limit of tolerance for higher gravity than a smaller structure. There are some tricks for getting a ...

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