We have come down from the areostationary orbit and we are now on Mars, at the equator, in the sector which from pole to pole, is reserved for our space station. Staying on site is the logical sequel to the descent described in “Descending on Mars”. We must see where we are, to do what, with what, and in relation with whom.
It has been observed that at the 0g level (ISS), the risk of living in weightlessness is unacceptable in the long term due to SANS syndrome (Spaceflight Associated Neuro-ocular Syndrome). Does this mean we should give up the idea of physically going to Mars, where gravity is not zero but weak? To answer this question, we need to study precisely (1) the effects of a 0.38g gravity and (2) build two rotating space stations.
The problem of Gravity on Mars. The reality, which we must face, is that a stay will be possible for one synodic period (18 months on site) and perhaps two (44 months on site – i.e., 18 + 26), but that, within the current technological framework, it will probably be impossible for an unlimited duration due to fundamental physiological properties of the human body. I do, however, open the door for a solution.
Pierre Brisson, président de la Mars Society Switzerland, membre fondateur de la Mars Society des États Unis et ancien membre du comité directeur de l’Association Planète Mars (France), économiste de formation (University of Virginia), ancien banquier d’entreprises de profession, planétologue depuis toujours
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