/sci/ - Science & Math

>>5387192
It wouldn't waft off any more than our own atmosphere wafts off. It would get eroded by the solar wind. Gotta do something bout that magnetosphere first.

>>5387197
like?

>>5387202

https://www.youtube.com/watch?v=b_MM6aX0Fqs

do as it says in the video

>>5387216
I like you you're a funny guy

>>5387216
That was Aliens.

>>5387202
I have no idea. All I know is that any atmosphere needs to either be shielded from the solar wind or constantly replenished. The rest is just tedious.

>>5387232
Would it be easier to replace whats lost or erect
enough towers to generate a planetary magnetic field?

probably a planetwide length of electromagnets. Atmosphere would have to be mostly CO2 to stop it wafting into space so easily.

Let's just live in space stations forever.

>>5387192
At a geological scale, the atmosphere would indeed "just waft off into space".
But we do not live/perceive time at a geological scale.
The atmosphere would stay for some thousand years. Plenty of time for maintenance or finding/building a more permanent solution.
Either for the atmosphere, like an artificial magnetosphere, or leving behind flesh. FLESH IS WEAK

>>5387254
trans-humanist I like it. but even when we get out of these bodies I think we will want normal meat bags around. to remind us.

>>5387262
It would be trivial to maintain shit like domes compared to maintaining the atmosphere manually.
In term of ressources.
Meat-bags for everybody, don't worry.

>>5387232
too bad nobody knows how magnets actually work

we need some monoples first

>>5387302
juggalo please go.

>>5387327
nice moon wind jiggling that flag

>>5387340
moon landing hoax please go.

An artificial magnetosphere?

>>5387232
you just gotta nuke the center of the planet. that should get it started again. or just whack with a big rock.

I highly doubt that any colonizing of mars is going to happen in the near future, just yet.

>>5387340

The flag wasn't a sheet of plastic. It just had a pole stuck through the top to help it roughly keep its shape. Jamming it into the moon dust is going to result in waves and wrinkles in the fabric.

>>5387586
Well how long is it gonna take Carl? We have the tech right now. Are we gonna wait till we destroy earth deplete every natural resource?

Or are we waiting for world peace and everyone singing kum bay ya?

If there was a colony on mars right now you could sign me up. I'm sure thousands more would be willing to do the same.

It may be that the erosion of the atmosphere without a magnetosphere is so slow it's not really worth worrying about. E.g., if once the atmosphere is provided it would be good for 100 million years. We could just replentish it then if needed.

Mars is never going to be terraformed. Ever. However it will be colonized plenty, probably with most areas below the surface.

>>5387672
Mostly underground makes the most sense at first but what makes you think it will never ever be terraformed? People like the out doors.

>>5387678
Mostly for the reasons pointed out already, it can't keep its atmosphere and it can't protect against radiation. Combined with a surface that actively sterilizes anything on it, it just isn't going to be worth the resources to try and turn that around.

Some of the settlements may get so large that it may as well be outdoors, though. And they'll have to be green too, basically gardens, forests and farms everywhere. Isolated biomes make for a good place to do biological engineering too.

>>5387672

Mars won't be terraformed OR colonized. There are no economic models by which those can happen.

Throw economics away, and we'll talk about possibilities. Hint: You first. Toss away your personal economics and just do work without expecting compensation. That should tell you all about your chances of success.

Just want to remind everybody that the macro-scale geological evidence point pretty heavily toward the fact that mars got hit by a fuckhuge asteroid and what was left of it became it's moons. The plant stopped, it got all it's shit blown off it and Olympus Mons erupted. The point is: the core is probably trashed. And artifical magentosphere would probably have to be created using space stations orbiting the planet.

>>5387686
what?

>Mars not full of untouched natural resources.

>>5387700
The cost of getting to them and of getting them out and off world is substantial, though. But still, given enough time and technology it could be no problem.

>>5387684
The radiation and surface sterility go away if you add atmosphere.

>>5387698
> fuckhuge asteroid

Exactly that's why humanity needs to branch out. Natural disasters could happen at any anytime.

>2012 all your humans in one basket.

>>5387302

>>5387672
It's closer to the asteroid belt is than Earth, and there are tons asteroids worth literally trillions in nickel and iron, not to mention the possibility of other metals. Mars could at the very least be a place to grow food to support people mining and refining the materials from asteroids, which could get tugged into the planet's orbit. For now it's an enormous challenge to get off of Mars in the first place because there's fucking nothing there. Once the infrastructure is built (for example a hydrazine facility that can utilize some local materials) then it'll get easier and easier, and since Mars has far lesser gravity and atmosphere than Earth it might not be that expensive.

This kind of thing might also happen on Mars specifically because people in the future might not want the asteroid mining going on in Earth orbit; it'd pollute like crazy with space debris and be a possible disaster if someone purposefully de-orbited one onto a city. If an old mined out asteroid accidentally hit Mars though, well whatever, it probably wouldn't hurt anyone assuming there aren't gigantic colonies everywhere.

>>5387712
>implying we wouldn't know about the fuckhuge asteroid 100 years in advance
>implying we wouldn't change its course only so slightly with a rocket

>>5389281
> Sustaining interplanetary habitats with planetary farming

ISHYGDDT. If you can have farms on Mars, you can just as easily have them in space (or even on the moon, if necessary), without a massive gravity well to worry about.

In response to colonization rather than terraforming, could you potentially erect some sort of device that would control the atmosphere within a calculated distance? Like large enough for a small town, maybe a thousand people? That way, you wouldn't be living under a bubble or fabric, so no chance of it being penetrated and letting out of the air inside and killing everyone in less than a minute. You would just need to make sure the tower is working.

>>5387712
>Discworld
My nigga

It doesn't make any sense to live on mars. The only reason you'd want to live in a gravity well would be it provided a nice comfy 1g with an earth like atmosphere. For anything else it would be easier and cheaper to build the required structures for colonies in space because of the sheer abundance of the requisite resources on asteroids.

Mars might be terraformed by intentional asteroid and comet collisions to provide said earthlike environment on the scale of 10^5 to 10^6 years. Until then the only people who might live on mars for extended periods of time would geologists and possibly astro-biologists.