That’s gonna be very difficult, restarting Mars’ dynamo is going to require some god-like amount of power. We don’t even know what powered the string dynamo it had 4 billion years ago; all we know is that there was a good magnetosphere, and then that collapsed and for a while a much weaker secondary dynamo took over, until that collapsed as well.
To get back an earth like dynamo, we’d need to do something crazy like re-melt huge parts of Mars’ insides in such a way to generate a flow structure that would remagnetise the planet.
I suspect it may very well be easier to cool down Venus than to restore Mars’ magnetic field when it comes to terraforming.
That’s gonna be very difficult, restarting Mars’ dynamo is going to require some god-like amount of power. We don’t even know what powered the string dynamo it had 4 billion years ago; all we know is that there was a good magnetosphere, and then that collapsed and for a while a much weaker secondary dynamo took over, until that collapsed as well.
To get back an earth like dynamo, we’d need to do something crazy like re-melt huge parts of Mars’ insides in such a way to generate a flow structure that would remagnetise the planet.
I suspect it may very well be easier to cool down Venus than to restore Mars’ magnetic field when it comes to terraforming.