A Startup Says It Grew Human Sperm in a Lab—and Used It to Make Embryos
WIRED•4/23/2026•tech
Paterna Biosciences says it has determined the set of instructions needed to turn sperm-making stem cells into "normal, mature" sperm.
Paterna Biosciences says it has determined the set of instructions needed to turn sperm-making stem cells into "normal, mature" sperm.