Who we are, the extent to which we identify (or not) with science, and how others see us shapes our (dis)engagement with science and science-related subjects in school, in out-of-school settings, in our work, and in our everyday lives. In this chapter, we first present the story (so far) of ESERA’s science identities special interest group, of how we came to be and how we developed our identity as a research group. We then briefly map the development of the research area of ‘science identities’ over the last two decades. We begin with a reflection on the emerging discourse of science identities, and the promise of this sub-field for science education research. We then provide a synthesis of the existing knowledge base on science identities, and identify gaps in the literature. We pose recommendations for future research directions, including the need for conceptualising science identity as an embodied affair in which the body is seen as an event instead of an object, and where emotions are central. We end the chapter with invitations for future research and researchers in the realm of science identities.