Scientists warn that radiation and microgravity pose a major threat to human reproduction in space. Understanding these biological risks is essential for the future of long-term space travel.

Human newborns arrive remarkably underdeveloped. The reason lies in a deep evolutionary trade-off between big brains, bipedalism and the limits of motherhood.

Humanity has been reaching for the stars for decades. Moon landings, Mars rovers, and long stays on the ISS. But there’s one question that seems to hang in the air: can humans actually have children ...