SUMMARY: When the Apollo astronauts returned to their lunar landers, they all noticed that the moondust - which had clung to their boots and suits - had some interesting properties. For starters, it smelled like spent gunpowder; as if someone had just fired a gun in the lander. Apollo 17's Jack Schmitt came down with a brief case of extraterrestrial hay fever. It could be that the relatively damp interior of the lander causes particles from the solar wind to evaporate into the air.
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