The cultural phenomenon of ‘science festivals’ is ever expanding throughout the world, as universities, city and regional governments, and science engagement professionals alike embrace the concept of a focused ‘celebration’ of science. In the past however science festivals have been criticized for neglecting underrepresented audiences. This special issue explores the extent to which current science festivals have managed to engage with diverse publics, and identifies the key challenges facing the future of science festivals, most notably the need for deeper research into the impacts of science festivals.

Science festivals (or just “festivals”) are currently ascendant in the United States with more than 40 new initiatives emerging in just the past 5 years, but their story is not so easily told. The schedule of any one individual festival may contain a staggering array of events, and each festival is different both from year to year, and from other festivals. One multi-festival evaluation points to potential strengths of the format, as well as the importance of the participation of STEM practitioners. Collaboration and social identity formation are considered as powerful festival impacts, and potential challenges for festivals are discussed.

This essay intends to present and reflect on the production and reception of sound language styles in a radio programme discussing science called Universidade das Criancas UFMG (UFMG Children’s University). This programme, aimed at children, is broadcast on the UFMG (Federal University of Minas Gerais) Educational Radio Station, located in Belo Horizonte, Minas Gerais, Brazil.

In this book, Brian G. Southwell discusses how disparities in information-sharing arise and what can be done to alleviate them. In all sorts of ways and for all sorts of reasons, people have always sought to share information among their family and other social networks. However, this sharing has never been equal: inevitably, some people are better-informed than others and some are more socially-connected than others. At first glance, the plethora of communication tools and technologies available nowadays should help democratise information and reduce disparity but differences in how, when and with whom information is shared create conversation gaps and maintain inequalities. Southwell explores and catalogues information-sharing behaviours, discusses the factors that affect how and why we share information and addresses the questions of why disparities in information-sharing matter and what we can do about the gaps between ‘information-haves’ and ‘information have-nots’.

Over the past decades there has been an increasing recognition of the need to promote dialogue between science and society. Often this takes the form of formal processes, such as citizen’s juries, that are designed to allow the public to contribute their views on particular scientific research areas. But there are also many less formal mechanisms that promote a dialogue between science and society. This editorial considers science festivals and citizen science in this context and argues that we need a greater understanding of the potential impacts of these projects on the individuals involved, both scientists and the public.

Scientists often cite discrepancy between scientific values and news values as a primary factor in poor quality science reporting. The goal of this study was to understand how news values including conflict and controversy affect science communicators’ evaluation of press releases containing quotes from outside expert sources. Results of an online survey experiment suggest science communicators find a climate science press release with an outside expert quote that introduces controversy to be more newsworthy. However, when a science communicator attributes relatively high importance to reliability of facts as a guiding principle in story selection, this preference for controversy is reversed.

The Internet is increasingly considered as a legitimate source of information on scientific and technological topics. Lay individuals are increasingly using Internet sources to find information about new technological developments, but scientific communities might have a limited understanding of the nature of this content. In this paper we examine the nature of the content of information about fusion energy on the Internet. By means of a content and thematic analysis of a sample of English-, Spanish- and Portuguese-language web documents, we analyze the structural characteristics of the webs, characterize the presentation of nuclear fusion, and study the associations to nuclear fission and the main benefits and risks associated to fusion technologies in the Web. Our findings indicate that the information about fusion on the Internet is produced by a variety of actors (including private users via blogs), that almost half of the sample provided relevant technical information about nuclear fusion, that the majority of the web documents provided a positive portrayal of fusion energy (as a clean, safe and powerful energy technology), and that nuclear fusion was generally presented as a potential solution to world energy problems, as a key scientific challenge and as a superior alternative to nuclear fission. We discuss the results in terms of the role of Internet in science communication.

Public participation in decision-making has in the last decades become a common refrain in political and scientific discourse, yet it does not often truly come to fruition. The present study focuses on the underlying issue, that of the construction of the difference between scientific and public knowledge and its consequences. Through discourse analysis of scientific texts on sustainable development three distinct groups of Slovenian social scientists were discerned that differed in their views on the relationship between scientific and public knowledge and consequently the role and nature of public participation in decision-making processes. With a rise in participatory practices the preponderance of the deficit model found in this study remains problematic.

This paper presents results from three studies on science blogging, the use of blogs for science communication. A survey addresses the views and motives of science bloggers, a first content analysis examines material published in science blogging platforms, while a second content analysis looks at reader responses to controversial issues covered in science blogs. Bloggers determine to a considerable degree which communicative function their blog can realize and how accessible it will be to non-experts Frequently readers are interested in adding their views to a post, a form of involvement which is in turn welcomed by the majority of bloggers.

‘Who’s Asking: Native Science, Western Science, and Science Education’ explores two key questions for science education, communication and engagement; first, what is science and second, what do different ways of understanding science mean for science and for science engagement practices? Medin and Bang have combined perspectives from the social studies of science, philosophy of science and science education to argue that science could be more inclusive if reframed as a diverse endeavour. Medin and Bang provide a useful, extensive and wide-ranging discussion of how science works, the nature of science, the role of culture, gender and ethnicity in science, biases and norms, as well as how people engage with science and the world around them. They draw on their collaborative research developing science education programmes with Native American communities to illustrate the benefits of reconstructing science by drawing on more than ‘Western’ science in education practices. The book argues that reconceptualising science in science education is crucial for developing a more diverse, equitable and inclusive scientific community and scientific practices, as well as improving educational opportunities and outcomes for youth from diverse and non-dominant backgrounds.