The UN launched in 2015 17 Sustainable Development Goals as part of their 2030 agenda which covered almost every aspect of human civilization on Earth. Outer Space, however, was omitted from the considerations. There hence have already been a couple of suggestions of an 18th SDG related to Space. The paper will discuss the history and motivations of these suggestions, compare the conceptual frameworks provided, and attempts at exploring the structure of the SDGs and such a potential SDG in particular, as well as the challenges that come with that concept. Comparisons are made to the UN Space2030 agenda.
