Astronauts returning from spacewalks say space leaves a smell on their suits; NASA crews have compared it with metal, gunpowder, and ozone

Astronauts returning from spacewalks report a surprising smell on their suits, reminiscent of burnt gunpowder and ozone. A NASA report delves into scientific theories behind this phenomenon, comparing it to various scents while emphasizing the need for research into this sensory aspect of space travel.

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