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Earth's magnetic field on its surface is 25 to 65 microtesla. Besides earth's atmospheric protection, majority of sun's harmful radiation on the earth is shielded by this small magnetic field. Such a small magnetic field can easily be produced by a permanent dipole magnet or a small current around the spacecrafts or space suits. Then why the space craft or space suites are not designed with magnetic fields?

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marked as duplicate by Russell Borogove, ForgeMonkey, Nathan Tuggy, SF., kim holder May 25 '17 at 14:27

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