3 ms·

It has been considered. This, http://www.islandone.org/Settlements/MagShield.html http://www.islandone.org/Settlements/MagShield.html is from 1991, but AFAIK

by T-A 10y ago

It has been considered. This, http://www.islandone.org/Settlements/MagShield.html http://www.islandone.org/Settlements/MagShield.html is from 1991, but AFAIK the magnets available then were not significantly worse than what we have now: https://en.wikipedia.org/wiki/Neodymium_magnet https://en.wikipedia.org/wiki/Neodymium_magnet