We will soon commemorate the 50th anniversary of the Apollo moon missions that culminated in the first lunar landing on July 20, 1969. Many of us still recall Neil Armstrong’s stirring words as he emerged from the lunar module: “That’s one small step for [a] man, one giant leap for mankind.”
However, it was those very steps that accumulated moon dust on the Apollo astronaut’s spacesuits. They then tracked the dust back into their spacecraft, in which it would disperse on reaching zero gravity.
Kailas A, Hoenig LJ. Moon Dust. JAMA Dermatol. 2017;153(10):1014. doi:10.1001/jamadermatol.2017.3341
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