A breakthrough molecule called JQ1 has shown it can pause sperm production with zero long-term damage, marking a massive shift in the decades-long hunt for a male contraceptive.
New research into simulated microgravity reveals that human sperm loses its navigational sense in orbit, threatening the long-term viability of off-world colonies.
Researchers report a proof-of-concept method that turns adult skin cell nuclei into fertilizable human oocytes using somatic cell nuclear transfer and a novel reductive division...
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