this post was submitted on 29 Aug 2026
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Mars (Planet)

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really crappy drawing i made of a rocket living habitat (infosec.pub)
submitted 1 week ago by gandalf_der_13te@feddit.org to c/mars@discuss.tchncs.de
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the point is that you can actually live inside the rockets when they first land, you don't need to build extra housing immediately. this significantly simplifies the mission requirements, at least for the first few years.

tank volume is about 1000 m³, which stores about 5000 kg of oxygen assuming 5 bar of pressure, which lasts a crew of 10 for about half a (martian) year, or about as long as the winter sand storms threaten to reduce solar panel production, so you have enough oxygen to breathe through this time.

it is a myth and misleading to assume that energy supply has to be constant. it is good enough if you can intermittently replenish your live support resources.

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[–] gandalf_der_13te@feddit.org 1 points 3 days ago* (last edited 3 days ago)

i was referring to this NASA webpage: https://science.nasa.gov/resource/radiation-measurements-on-mars/

where it says that average radiation intensity is around 200 μGy/day which is about 73 mGy/year (365 days).

and this XKCD radiation dose chart: https://xkcd.com/radiation/

where it says "maximum dose permitted by US radiation workers: 50 mSv/year" and "lowest dose clearly linked to increased cancer risk: 100 mSv/year" so yeah we're right in the middle between these two. still, i'm not sure by how much the risk is increased but i assume it means "above detectable threshhold" which i assume is still pretty small. so i don't think that radiation alone will stop people from taking the risk and going there. contrary to what the newspapers present. europeans first going to america didn't face a no-risk journey either and they were still willing to go.