Post-ID: thread-20150604144603-qdb-310773 Created-At: 2015-06-04T14:46:03Z Board-Tags: general Imported-Score-Seed: 19 Imported-Vote-Count-Seed: 45 Why do we need a magnetic field in our giant spaceship we'll all be dead from solar radation in like days if not less I hope you're not planning to nav your ship by compass :p And, honestly, the magnetosphere doesn't stop radiation. It stops solar wind particles from stripping away the atmosphere :-D what relevance would a compass have in a spaceship anyway?> how else are you supposed to draw circles?