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This is one of those things that so many SF stories simply ignore, but is so fundamental right behind terraforming) to allowing space colonization. This was really cool news to come across.

The blocks, built with carbon nanotubes, have a relatively low density but display strength approaching that of granite and could create extra terrestrial structures.

Does this imply carbon nanotubes occur naturally on Mars? Not sure what to understand from this article...

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Carbon nanotubes in general (to my admittedly non-physicist knowledge) are synthesized, but creating/storing/transporting them is much more efficient than transporting full building materials.

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creating/storing/transporting them is much more efficient than transporting full building materials.

Right, it's really small and low density. Maybe it could be synthesized on Mars since there's lots of carbon dioxide.

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One approach I would imagine then would be to first transform the CO$_2$ into CO or methane CH$_4$ before using CVD to form carbon nanotubes...

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Looks like they will be making methane on Mars anyway before building anything permanent.

SpaceX_Mars_colonization_program

Methane was chosen for the Raptor engines because it is relatively inexpensive, produces a low amount of soot as compared to other hydrocarbons,[28] and can be created on Mars from carbon dioxide from the atmosphere and hydrogen via the Sabatier reaction.[29]
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methane

That was my thought too, after reading about the manufacturing process.

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The atmosphere in mars could create unique materials, sort of like how when you put clay in the oven it hardens.

But people also say the moon is rich in Helium3 because of its atmosphere or lack there of,

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What a peculiar piece of information! Although it seems to me that humanity is still a long way off from being able to colonize or inhabit Mars, for those who study and like space, this is good news!

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Oh yeah, I posted an article a few weeks ago about all the reasons a Martian settlement is unlikely, and it still stands. But I still want to see it somehow happen.

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It is also valid๐Ÿ‘ Here in South America there is a saying that goes "Hope is the last thing to be lost"... So something else can happen on the Red Planet!

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Awesome! We can go to Mars without a second thought ๐Ÿ˜‚

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Very cool.

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