It seems increasingly plausible that humans will colonize space. But to continue the human race as we know it, we would have to reproduce in space. Up until now, scientists weren’t sure that was possible—one 2009 study conducted in simulated zero gravity, and another done in 1996 in which NASA scientists sent embryos to space, did not see any mammalian embryos develop.
Mammal Embryos Develop Normally in Space
