Can humans have babies in space? It may be harder than expected
space.com Mar 28, 2026

Can humans have babies in space? It may be harder than expected

AI-summarised brief · reviewed before publication

Researchers at the University of Adelaide have found that mammalian sperm cells struggle to navigate microgravity, hindering fertilization and embryo development. Embryos formed in space appear stronger initially but lag behind those in normal gravity after longer exposure. This study suggests mammalian reproduction in space may be complicated, if not impossible, posing a significant challenge to future space settlements and human colonization.