GEO is in a Van Allen Radiation Belt, thus is awash with radiation trapped in the magnetic fields of earth. This is a significant hazard even to the communications satellites now operating in GEO, requiring radiation hardened circuitry. Not a nice place for humans to spend much time in, if unshielded. Lifting passive shielding, equivalent to 6 feet of surrounding rock, to shield the habitats, is conceivable with KESTS' efficiency. The interesting thing is what will happen when that large mass is there in GEO, because the radiation particles striking it will likely stick to into it, like a sponge soaking up water. The high velocity that makes the particles dangerous in GEO, will circulate them around the radiation belt rapidly, giving much opportunity to jam into the passive mass. Will this automatically clear out the local radiation problem there?

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