In this article, we explore scientists' freedom of expression in the context of authoritarian populism. Our particular case for this analysis is Finland, where the right-wing populist Finns Party entered the government for the first time in 2015. More recently, after leaving the government in 2017, the party has been the most popular party in opinion polls in 2021. We illustrate the current threats to Finnish researchers' freedom of expression using their responses on three surveys, made in 2015, 2017 and 2019. We focus on politically motivated disparagement of scientists and experts, and the scientists' experiences with online hate and aggressive feedback. Further, we relate these findings to the recent studies on authoritarian populism and science-related populism. We argue that this development may affect researchers' readiness to communicate their research and expertise in public.

This study aims to test for differences in the receptiveness of science and non-science undergraduates to positive, non-aggressive humour being used in a science article, as an exploration into the utilization of such humour as a tool for more engaging science communication. The majority of the 76 respondents to an online survey were generally receptive to such use, with some differences between the two groups. It was also noted that a receptiveness to such humour may not necessarily be associated with a receptiveness to its actual use in science articles.

Since the COVID-19 pandemic hit the global community, politicians as well as scientists increasingly turn to Twitter to share urgent health information using various message styles. The results of our 2x2 between-subject experiment show that if a Tweet is written in lower-case letters, participants perceive the information source as more trustworthy. Furthermore, the information is perceived as more credible, and people are more willing to read the health information and share it via social media. Furthermore, scientists are perceived as possessing more expertise than politicians. However, politicians are perceived as possessing more integrity and benevolence than scientists.

When, to what extent and under what conditions autonomous driving will become common practice depends not only on the level of technical development but also on social acceptance. Therefore, the rapid development of autonomous driving systems raises the question of how the public perceives this technology. As the mass media are regarded as the main source of information for the lay audience, the news coverage is assumed to affect public opinion. The mass media are also frequently criticized for their inaccurate and biased news coverage. Against this backdrop, we conducted a content analysis of the news coverage of autonomous driving in five leading German newspapers. Findings show that media reporting on autonomous driving is not very detailed. They also indicate a slight positive bias in the balance of arguments and tonality. However, as soon as an accident involving an autonomous vehicle occurs, the frequency of reporting, as well as the extent of negativity and detail increase. We conclude that well-informed public opinion requires more differentiated reporting — irrespective of accidents.

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.

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.

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.

When analysing the actors of the science communication ecosystem, scholarly research has focused on the perceptions and attitudes of scientists, science journalists, and science communicators. How the public envisages the roles of science producers and mediators is mostly uncharted territory. We address this gap, by examining the results of a public consultation in Portugal concerning science communication. We show that the public demonstrates a clear preference for science communication performed by scientists, over journalists, although credibility and trust depend on multiple factors. We also ascertain that professional science communicators are mostly invisible, though the public recognises the value of `translators'.

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.

Internet technologies and specifically social media have drastically changed science communication. The public no longer merely consume science-related information but participate (for example, by rating and disseminating) and generate their own content. Likewise, scientists are no longer dependent on journalists as gatekeepers to spreading relevant information. This paper identifies and reflects on relevant theoretical strands that help to inform theoretical frameworks and research agendas. Therefore, we discuss the technological structures and resulting affordances, a new knowledge order and its actors, as well as trust and rationality as important constructs.