/sci/ - Science & Math

>>15177325
https://phys.org/news/2017-03-nasa-magnetic-shield-mars-atmosphere.html

We have the technological capability/means to do so if we really want to.

>>12676901
we could maybe do something like this at a geostationary orbit

>>12671437
>>12671453
>>12671454
>blocks your path
why does everybody forget this? is half of /sfg/ newfags now?

>>12559734
are you new?

>>12540189
>in a reasonable timeframe
>Chinese smokestacks
Not really, the best first step is make sure the Martian atmosphere is protected from solar wind loss so that pressure and temperature can reach habitable levels for algae/molds/bacteria to take hold and start photosynthesis and breaking down the Martian soil.

>>11987084
> pissing in the wind on a planetary scale
https://youtu.be/KkKak9bNGjU

We can give Mars a magnetic field.

>>11754817
This is a really cool idea. Really difficult but not impossible, I'd love to see more research on this subject

>>10978484
>nuking Mars

We night want to protect our investment first.

>>10893727
>>10893615
Solar erosion of atmospheric gases takes millions of years to lose significant quantities.

The problem is solved by a magnetic station at the Mars Solar L1.

The other major atmospheric problem is gravity. Mars just doesn't have enough to hold a thick atmosphere of light gases. It would be extremely high earth altitudes at best.

>>10755996
>>10756029
It looks like the magnetic shield idea will be easier; someone ran the math, and it turns to be on the edge of doable with existing tech, granted it will need a 57 tons of copper for the electromagnet, and a full size nuclear power plant, but if we develop enough lift capacity to seriously settle Mars, we will also be able to put something like that in orbit.

https://medium.com/our-space/an-artificial-martian-magnetosphere-fd3803ea600c

>>10176704
like this?

>>9957685
Short term people will just have to spend most of their time in underground habitats. Longer term, building an artificial magnetic shield for Mars looks to be surprisingly doable.

>>9947924
It may be possible to set up an artificial magnetic field to shield Mars.

There are proposals to build a magnetic shield for Mars, that could be stuck in the Martian L1 orbit. Would be quite an undertaking, but seems a lot more feasible than many other teraforming ideas.

I'd start with trying to minimize harmful radiation. You can use terrestrial VLF transmitters [1] and space-based magnetic shields (pic related) [2] to protect the planet from radiation.

[1]
>[VLF] waves may be enveloping the globe like an electromagnetic comforter, protecting it from satellite-frying space radiation
https://www.engadget.com/2017/05/19/earths-radio-signals-may-be-protecting-it-from-space-radiation/

[2]
>by positioning a magnetic dipole shield at the Mars L1 Lagrange Point, an artificial magnetosphere could be formed that would encompass the entire planet, thus shielding it from solar wind and radiation
https://phys.org/news/2017-03-nasa-magnetic-shield-mars-atmosphere.html

>>9223533
Volcanos don't give you a magnetic field - Venus has plenty, yet next to no magnetic field. What gives you a magnetic field is a core spinning at a different rate than the surface - this entails a liquid mantel that gives you volcanos, but it's not the volcanoes themselves that provide that.

Suffice to say, no amount of nukes is going to liquify the planet's innards enough to allow the core to spin freely, and even if you did manage to do that, somehow, there's nothing to cause the core to spin differently than the surface.

What ya'd need, is a large object in a close retrograde orbit - probably something about half the size of the moon. You wouldn't need to liquify anything at that point, the gravitational differential between the core and the surface would take care of that for you. Albeit, this would take a few million years to really kick in, nevermind getting the object into the proper orbit.

Suffice to say, NASA's idea of putting a magnetic field generator in a distant solar-stationary orbit would be simpler and more effective, as goofy as it is.

In the end, however, the radiation problems on Mars are highly overrated. Mere inches of metal, a foot of rock, or two feet of water takes care of the problem, and there is this thing called hydroponics. Gravity, though also probably overrated, maybe a bigger issue.

>>8807143