Quote:
Originally Posted by grubber788
...Would this mean that a person living on Mars for an extended period, could return to Earth because the change back to higher gravity would be too much for the body to endure?
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Concerning bones, I'm not sure we know whether the stay in 0.4g Martian gravity would result in calcium loss in the bones. The thing we know is trouble is the long ride to and from. A spinning habitat can be good for the bones. The cosmic ray issue is another problem, but you didn't ask about that.