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Scientists Took Semen Onto A "Vomit Comet" Flight, And The Results Were Concerning
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2024-11-11
Especially considering the samples were exposed to supergravity as the plane came out of its dive. I feel like that would mostly invalidate whatever they were hoping to find.
Also, why do they dismiss asking ISS staff to participate in studies? Bodily autonomy doesn't mean you can't ask someone to conduct .. uh... research with you. It just means you have to respect it they say no. Astronauts seem like the types who wouldn't mind putting in a little extra effort for... science.
Too many other introduced variables? Microgravity has a lot of other systemic effects on the astronauts that might affect sperm motility, even before effects to the sperm themselves. Or just individual variation/genetics on the part of the astronauts themselves.
They wouldn't be able to get a sperm sample that wasn't affected by microgravity from the astronauts to begin with.