eldavojohn writes "Astronauts sent to the red planet may find much of their job involving the task of dusting off their equipment and suits. The president says we're going there but the dusty planet has some obstacles and uncertainties for engineers because we don't have a sample of Martian dust. Is it toxic? Will it conduct electricity and short circuits? Will astronauts suffer from the triboelectric effect? How large is the average grain? Will humans be allergic to it? Will sinuses jeopardize a mission? Will a dust storm stop a take off and return flight? So many uncertainties from something as simple as dust but one thing is clear — we need samples!"
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