Without air or rain to neutralize charge, lunar dust grains pick up electric charge from solar ultraviolet and the solar wind, then stick stubbornly to suits, tools, and seals.
Apollo astronauts found black powder coating everything after EVAs; it smelled like gunpowder indoors and irritated eyes and lungs. Future systems need brushes, filters, and airlocks designed for clingy grit.
The Moon’s dirt fights to come inside. Electrostatic dust is a quiet enemy of every lunar stay.
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