European science communication project QUEST surveyed and reviewed different aspects of European science communication, including science journalism, teaching and training in science communication, social media activity, and science in museums. This article draws together themes that collectively emerge from this research to present an overview of key issues in science communication across Europe. We discuss four central dynamics — fragmentation within research and practice; a landscape in transition; the importance of format and context; and the dominance of critical and dialogic approaches as best practice — and illustrate these with empirical material from across our datasets. In closing we reflect upon the implications of this summary of European science communication.

Science communication continues to grow, develop and change, as a practice and field of research. The boundaries between science and the rest of society are blurring. Digitalization transforms the public sphere. This JCOM special issue aims to rethink science communication in light of the changing science communication landscape. How to characterize the emerging science communication ecosystem in relation to the introduction of new media and actors involved? What new practices are emerging? How is the quality of science communication maintained or improved? We present a selection of papers that provide different perspectives on these questions and challenges.

The pace and scope of digital transformation has brought about fundamental changes to science communication. These changes have so far hardly been reflected in the underlying concepts of science communication as field of research and practice. Against this backdrop, this paper asks how science communication can be conceptualized in response to fundamental societal changes brought about by digital transformation. In response to this question, this paper builds on the results of a Delphi study with 31 outstanding international science communication scholars. It presents a shared approach that conceptualizes online science communication broadly and tackles different points of view by identifying specific characteristics that enable the distinction of different settings of science communication. It is argued that such an approach should be more appropriate for a contemporary analysis of science communication and also helpful for professional communicators and policymakers to understand the interactions of science and society in the context of the digital media landscape.

In this essay the authors reflect on some recent trends in science communication research, celebrating it as an inherently interdisciplinary endeavour. Some current tendencies in science communication are more limiting, however: they present theoretical and strategic prescriptions that do not adquately reflect the variety and cultural diversity of science communication internationally. Rethinking science communication in the context of such diverse practices and cultural reorientations, the authors revise some of their own views and revisit notions of communication as conversation to propose an inclusive definition of science communication as the social conversation around science.

This study explores the types of actors visible in the digital science communication landscape in the Netherlands, Serbia and the U.K. Using the Koru model of science communication as a basis, we consider how science communicators craft their messages and which channels they are using to reach audiences. The study took as case studies the topics of climate change and healthy diets to enable comparison across countries, topics and platforms. These findings are compared with the results from a survey of over 200 science communication practitioners based in these countries. We find that although traditional media are challenged by the variety of different new entrants into the digital landscape, our results suggest that the media and journalists remain highly visible. In addition, our survey results suggest that many science communicators may struggle to gain traction in the crowded digital ecology, and in particular, that relatively few scientists and research institutions and universities are achieving a high profile in the public digital media ecology of science communication.

Citizen science is a transdisciplinary approach that responds to the current science policy agenda: in terms of supporting open science, and by using a range of science communication instruments. In particular, it opens up scientific research processes by involving citizens at different phases; this also creates a range of opportunities for science communication to happen This article explores methodological and practical characteristics of citizen science as a form of science communication by examining three case studies that took different approaches to citizens' participation in science. Through these, it becomes clear that communication in citizen science is ‘÷always’ science communication and an essential part of “doing science”.

This paper investigates the dimensions of trust and the role of information sources and channels in developing differentiated forms of science communication. The discussions from two public consultations carried out in Italy and Slovakia about controversial science-related topics were quali-quantitatively content analysed. The results show that scientific knowledge pervades diverse communication spheres, producing differentiated paths of trust in science. Each path is determined by topics (environment or health-related), information sources and channels preferred, and specific features of the multifaceted notion of trust. The contribution discusses cross-national commonalities and specificities and proposes implications for science communication.

Communities of practice in science communication can make important contributions to public engagement with science but are under-researched. In this article, we look at the perspectives of a community of practice in astronomy communication regarding (relations with) their public(s). Most participants in this study consider that public(s) have several deficits and vulnerabilities. Moreover, practitioners have little to no contact with (and therefore make no use of) academic research on science communication. We argue that collaboration between science communication researchers and practitioners could benefit the science-public relationship and that communities of practice may be critical to that purpose.

This article contributes to reflective practice amongst scientists who engage with citizens in the digital public sphere, by exploring the scientists' experiences and underlying perspectives on their role repertoires in online science-society interactions. Semi-structured interviews were held with 26 European scientists to investigate their focus and contribution in boundary interactions, perspective on appropriate model of science communication, and activities, outputs and addressees in the digital public sphere — together comprising a role repertoire. The intended role of scientists often did not match with their deployed repertoire in online interactions with citizens. Participants were left with the feeling that the digital public sphere provides hollow interactions, devaluates scientific expertise or even represents a hostile environment. In order to capitalise on the promise of the digital public sphere for constructive interactions with a diverse public, a reflective practice is needed that aligns scientists' intended contribution to science-society interactions with the scientists' perspective and deployed online repertoires.

Studies on women's marginalisation as authors and sources of science stories in the media in developing countries are few, and fewer in the context of genetically modified organisms (GMOs). Using feminist media theory, this study surmises that women are accordingly underrepresented in GMO stories. Based on a content analysis of 317 stories published in two Ugandan newspapers, findings indicate that chances of females being published as authors and sources increase if they collaborate with a male. There is a need for female scientists to collaborate with male counterparts and journalists to increase their visibility in the media in an agricultural sector where women are great contributors to the labourforce.