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/sci/ - Science & Math

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File: 26 KB, 550x358, EarthandMars.jpg [View same] [iqdb] [saucenao] [google]
1147500 No.1147500 [Reply] [Original]

ok guys what would it take to terraform mars?
be realistic

>> No.1147514

with current techs it is totally impossible. Gravity is not strong enough to build a large enough atmosphere.

>> No.1147520
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1147520

how do we get enough volatiles there (water) cheaply (moving comets is expensive)
also
we have to get the atmosphere thick enough to last 300 million years (thick enough for people to breathe), this entails moving billions of comets.

>> No.1147535

implement lasers from spore

>> No.1147537

>>1147500
"seeding".

Sending oxygen, rain, and tiny organisms onto the surface would start the terraforming.

>> No.1147539

we have millions of years to do it if we dont do it in some centuries, I think that eventually mars will be a planet full of oceans of water like us

>> No.1147543

You'd have better luck stripping Venus's atmosphere until it's in a reasonable pressure range.

>> No.1147550
File: 30 KB, 450x450, terraforming-mars.jpg [View same] [iqdb] [saucenao] [google]
1147550

>>1147514
if we can keep enough atmosphere in place for several hundred million years then its feasible. It would take about that long for a martian atmos. with earth's atm. pressure to decay to unbreathable levels.

>> No.1147555

Mars lacks a strong magnetic field.

>> No.1147556

Dead magnetic field is dead. Without it all attempts at an atmosphere will be blown away by the inertia of the solar wind.

>> No.1147562

Nuke the polar ice caps. No, seriously. The idea was kicked around in the '80s as a way to instantly create an atmosphere.

>> No.1147570

>>1147556
over the course of hundreds of millions of years
>>1147555
there are locally strong areas

>> No.1147576

>>1147500
Probably a fraction of a solar mass in energy to somehow restart Mars' core.

>> No.1147592

>>1147562

I thought the problem with that theory was that the atmosphere would only be temporary?

>> No.1147589

To be fair, we don't really understand out own magnetic field yet. There are big questions as to its nature still. Until we answer that, we probably won't be trying to restart the one on mars.

Venus's mag field works fine though. If it weren't something like 160 bar, it might be ok (it crushed a couple probes).

>> No.1147602

>>1147562
Yeah then we can have a radioactive atmosphere.

Sounds fun.

>> No.1147607

>>1147556
Don't know shit about astrophysics or magnetism, but couldn't we deflect solar wind through some sort of network of electromagnets put onto satellites? Would it be possible to direct the satellites' electromagnetic radiation so it doesn't reach the planet's surface?

>> No.1147628

>>1147607

We dont even know how magnets work, you fool

>> No.1147634

Aside from a very long amount of time (like several centuries), you'd need to make something recharge it's magneto-sphere (which it barely has) to create a barrier to block out cosmic radiation. Something to restart it's convection/plate tectonic to make the soil even viable (if I remember correctly, Martian soil is pretty much sterile), THEN you can worry about thickening the atmosphere and creating an ozone layer. Even if you somehow create an Earthlike environment on Mars, it'll still be a cold deserty place for a while. Think of a planet that's the same temp as Scandinavia all over.

>> No.1147636

>>1147628
Miracles, etc.

>> No.1147640

>>1147607

The power of the magnetic field would be immense. As it is, we're unable to make one anywhere near powerful enough to protect astronauts. Luckily, we've never left the comfort of our magnetic field.

>> No.1147655

>>1147634
This makes me wonder - what happens when you open up mars soil / moon soil on earth in our oxygen and gravity rich planet. Not to mention water.

>> No.1147667

>>1147655

It gets contaminated.

>> No.1147675
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1147675

>>1147628
Why do people think this.

We do know

http://en.wikipedia.org/wiki/Magnets#Microscopic_origin_of_magnetism

>> No.1147692

>>1147675

Magnetic theory is widely accepted to be incomplete until we nail down the carrier particles.

>> No.1147703

>>1147667
Yeah. Only Deionized water doesn't have some type of life in it.

Though, I've always wondered when scientists would just go "FUCK IT, THIS SHIT TAKES TO LONG; CONTAMINATE THE ENTIRE SOLAR SYSTEM"

>> No.1147864

>>1147589
venus has no magnetic field, Mercury is the only other terrestrial planet with one