L
Leovinus
Guest
Mars does not have a magnetic field. If people were to live there, it would be nice to have a magnetic field to help protect them from solar wind. <br /><br />The Earth has a magnetic field because it has an iron core that rotates. I don't think giving Mars a new core is very practical. But if all we need is some rotating iron, what would happen if we gave Mars a "belt" of iron around its equator? Would that provide a magnetic field? How big a belt would be required to provide an Earth-like field? <div class="Discussion_UserSignature"> </div>