The research addresses concerns about the impact of long-duration spaceflight on human reproductive health and the viability of producing healthy offspring in space.
Mouse stem cells were frozen and stored on the ISS for six months before being returned to Earth for examination.
The study found no abnormalities in the space-exposed cells, and when used to produce offspring, the resulting mice were healthy with normal gene function.
This groundbreaking research suggests that frozen germ cells can remain fertile in space for extended periods, offering promising implications for future human space exploration.