‘What Would Sagan Do?’1: The fandom and anti-fandom of Carl Sagan

Abstract This article asks the question: in what ways can Carl Sagan fans and anti-fans be understood within a larger participatory science culture? To answer this question, I use Jonathan Gray’s theory of paratextuality to show how the study of Carl Sagan fandom can contribute to discussions on public participation in science. I draw from Matt Hills, to develop the term secular-religiosity. This term helps to describe how popular texts that feature Sagan allow room for audiences to access scientific knowledge and incorporate it into everyday belief systems. Next, I map a fan-generated Sagan-inspired group of paratexts onto Massimiano Bucchi and Federico Neresini’s public participation in science graph to show that Sagan fans who reproduce secular-religiosity engage in low-intensity but spontaneous forms of public participation in science. I explore these forms of participation by categorizing four types of paratextual routes that Sagan fans and anti-fans create for engaging secular-religiosity. I end with a discussion on how the study of Sagan fandom can help build bridges between public participation in science and fan studies.