Sex in space? Sperm struggles to navigate during weightless sex
When it comes to successful fertilization, zero gravity means zero game, a new study suggests. When looking at sperm and eggs in simulated microgravity, scientists found that this environment hampered sperm navigation, fertilization and embryo development, posing serious challenges for the future of space colonization.
The findings have big implications for building a lasting human presence off Earth. The long-term settlements planned for the moon and Mars depend not just on keeping astronauts alive but on whether people can eventually reproduce there.
Earth egg fertilization embryo hormone human Mars McPherson MOON navigate progesterone Researchers Sex Sex in space Space SPERM weightless
2026-03-30
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