Research into outer space has burgeoned in recent years, through the work of scholars in the social sciences, arts and humanities. Geographers have made a series of useful contributions to this emergent work, but scholarship remains fairly limited in comparison to other disciplinary fields. This forum explains the scholarly roots of these new geographies of outer space, considering why and how geographies of outer space could make further important contributions. The forum invites reflections from political, environmental, historical and cultural geographers to show how human geography can present future avenues to continued scholarship into outer space.