  What will the future of cislunar communications be? The ever-expanding
horizons of the space exploration missions, and the need for establishing
sustainable space communication and navigation infrastructure necessitate to
think this question thoroughly. In this article, we examine how some of the
concepts of 6G technologies developed for terrestrial networks can be relevant
in the context of cislunar networks. We discuss how 6G concepts, such as
reconfigurable intelligent surfaces, quantum-resistant physical layer security,
private information read/write/cache networks, semantic and goal-oriented
communications, information freshness based quality of communication metrics,
multi-relay and cooperative networks, hold the potential to shape the future of
cislunar communications.
