this post was submitted on 30 Jul 2025
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Mars (Planet)

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This is a place to discuss everything about the planet Mars.

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'A City on Mars' is a reality check for anyone dreaming about life on the Red Planet (www.space.com)
submitted 1 month ago by cypherpunks@lemmy.ml to c/mars@discuss.tchncs.de
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[–] gandalf_der_12te@discuss.tchncs.de 3 points 1 month ago (1 children)

It's not entirely the case.

All of the tech we’d need to even get to mars would be sufficient to sustain human life in space

Yes, we could sustain human life in space for a while, as we do during the trip to Mars, but the problem is that supplies (especially food and oxygen, and probably water) will eventually run out and have to be replenished.

In outer space, there's a vacuum and so, materials can't be sourced from there. They have to be sourced from a planet or another object that provides a large supply of materials. Mars offers atmospheric CO~2~ and water (in the form of hydrated rocks), which can be used to produce biomass (food) and oxygen (through electrolysis). So it's preferable to just floating in outer space.

[–] Semi_Hemi_Demigod@lemmy.world 0 points 1 month ago

Which is why I think we should skip Mars and head straight for the asteroid belt. Plenty of resources, no toxic dust.