Germline Gene Editing and Embryo Selection for Future Long-Term Space Missions

Abstract

Abstract This chapter discusses two methods of so-called positive selection, namely germline gene editing (GGE) and embryo selection. It discusses the arguments for and against both methods, showing why they are not controversial in principle, and at least as controversial as their opponents portray them to be. It also considers the possibilities and contexts for their application to future space missions, especially those that assume a permanent human presence in space and allow for the possibility of reproduction in space. Apart from the exceptional undesirable situations that such procedures could hypothetically lead to, it concludes that positive selection may not only be morally acceptable but also desirable in space settlement conditions.