[nvscanman]

Mars will never have a magnetosphere unless a way
can be found to create a molten metallic core.
That is the source of the magnetic field that protects
earth. Mars does not have that.....simply making it
bigger won’t change that fact.

[Pontiac]

Mars will never have a magnetosphere unless a way can be found to create a molten metallic core.

I realize that.

Which is why we will have to find an especially large Nickel-Iron asteroid with which to strike Mars; Large enough to essentially pulverize Mars to the point that the NI asteroid will melt and sink to the center of Mars becoming its core.