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The authors took sperm samples from humans, mice, and pigs and put them through a special machine that simulates zero gravity conditions, essentially flipping the sperm cells to disorient them, and then pushing them through a maze that simulates the female reproductive tract.—ArsTechnica, 1 Apr. 2026 There are particularly high levels of DHA in the retina, brain, and sperm cells.—Heather Jones, Verywell Health, 30 Mar. 2026 Their tests showed that some sperm cells did make it through, suggesting children may one day be conceived in space.—Chris Young, Interesting Engineering, 27 Mar. 2026 In her experiment, McPherson and colleagues created a set-up holding human, mice and pig sperm cells in one part of the compartment and egg cells in the other, divided by a thin channel simulating the female reproductive tract.—Tereza Pultarova, Space.com, 27 Mar. 2026 See All Example Sentences for sperm cell