I Terraforming Mars by using Europa

[Beaugeard F]

Is it possible (theory and faisable?) to set a metallic magnet on one of the moon of Mars and by the simultaneous rotations to create a dynamo effect, then a magnetic field (to protect the atmosphere)?

 

[stefan r]

Is it possible (theory and faisable?) to set a metallic magnet on one of the moon of Mars and by the simultaneous rotations to create a dynamo effect, then a magnetic field (to protect the atmosphere)?

Magnetic fields redirect solar wind. A magnet on Phobos would direct particles into Mars during part of its orbit.
This article talks about a magnet at Lagrange point 1. The Lagrange point 1 is always on the sunny side of Mars so the magnetosheath would not hit the atmosphere.

 

[MikeeMiracle]

Mars is 1/4 the size of Earth so you have 1/4 of the gravity roughly speaking. Anyone considering what physical effect will that have on any settlers?

They will lose muscle mass, maybe grow to be taller, legs will not be as muscular so they would struggle to walk if they ever came back to Earth. Anyone born over there almost certainly would not be able to walk on Earth. Imagine trying to walk now if you weighed 4 times more then you currently do. Less sunlight also means less Vitamin D creation so we would need suppliments just to survive. Anyone living on Mars would speciate over time differently than the rest of us on Earth. We would in effect, become the Martians of sci-fi legend :)

There are many other issues apart from saying "let's just teraform and go live on Mars."

 

[sophiecentaur]

They could make a serious effort at Terraforming Earth before they start on anywhere else. Humans just shouldn't be trusted with the sort of powerful tools they have these days.

 

[stefan r]

They could make a serious effort at Terraforming Earth before they start on anywhere else. Humans just shouldn't be trusted with the sort of powerful tools they have these days.

I would not trust anyone tampering with Earth's climate. Tampering with Mars' or Venus' climate is safely "not in anyone's backyard". Most of the reasons to oppose breeder reactors and nuclear reprocessing dissappear if we are talking about a complex near Copernicus crater. It should be fine to try Jurassic Park in an O'Neil cylinder.

Geoengineering may be necessary. There are reason to use extreme caution.

 

[sophiecentaur]

They’ve been tampering with our climate for at least a hundred years. Look where it’s got us. There are too many variables and the delay in any of the feedback loops is too long for us to cope. I think it relates to the ‘evolved’ Life span which is around 40 years.
The Egyptians, Victorians and Romans seemed to have better long term ideas than modern people, despite the life span approaching 100 years. Strange. The four or five year cycle of governments may have taken over as the step size in time.
Populating other planets with ‘colonies’ is something for the very distant future, if at all, I think.

 

[PAllen]

How about just try an approach possible in the moderately distant future and see what happens. Specifically, launch all nuclear weapons on Earth to be detonated evenly on mars, melting ice caps and having various unpredictable results. Observe from a distance till radiation dies down. Success in terraforming would be unlikely, but think of the benefits for Earth ...

 

[davenn]

Is it possible (theory and faisable?) to set a metallic magnet on one of the moon of Mars and by the simultaneous rotations to create a dynamo effect, then a magnetic field (to protect the atmosphere)?

No it isn't ... you were told that and the reasons why in the other thread