Abstract Multiplexity is a promising but underdeveloped concept that describes the shift towards a post-hegemonic global order, which is more decentred, diversified and pluralistic, yet deeply interdependent and increasingly shaped by non-western agency. This article is the first to apply and to reassess the concept of multiplexity in the context of the international space order. Two key arguments follow. First, space reveals some important limitations of multiplexity, particularly given the end