According to Kris Lehnhardt, an assistant professor at George Washington University, if we want to attempt long haul space travel, or even one day colonizes Mars, then we really need to study sex in space. A “real concern” he called it during an Atlantic Live panel recently, that we haven’t even considered yet. Although there are many challenges maintaining human life over the course of longer and longer space missions —maintaining good mental health, combating radiation, providing food sources to name a few— yet no one has taken to studying the human life cycle. “Something we really don’t know about is a human reproduction in space,” Said Lehnhardt to the panel audience. So far, the only space-related reproduction study has involved freezing and transporting frozen sperm. Recently a team of Japanese scientist successfully birthed a set of newborn mice from sperm that was frozen and kept aboard the International Space Station. The scientists have said that the result will help in the ‘space age’. Without pointing to specifics, they say that this technique will help long-haul space flight and even colonization.