The same way aircraft fly thru them in the polar regions every day, as you may not be aware that the magnetic fields flow in a loop from the poles. Since they emanate from the ground level. It's an easily disproven myth that they are impenetrable. As a matter of fact the latest study of the Van Alan's show that the amount of shielding needed while operating a space craft in their vicinity is much less than once thought. Van Allen Radiation Belts: Facts & Findings (space.com)
The same way aircraft fly thru them in the polar regions every day, as you may not be aware that the magnetic fields flow in a loop from the poles. Since they emanate from the ground level. It's an easily disproven myth that they are impenetrable. As a matter of fact the latest study of the Van Alan's show that the amount of shielding needed while operating a space craft in their vicinity is much less than once thought.
[Van Allen Radiation Belts: Facts & Findings](https://www.space.com/33948-van-allen-radiation-belts.html)
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