There is growing pressure within the scientific community for scientists to participate in public engagement of science (PES) activities. As such, science communication scholars have worked to identify factors that predict a scientist's intention to participate in PES activities. One factor that has not been explicated is the role of experience performing PES activities in the past on one's future behavioral intentions. Using an augmented theory of planned behavior, we examine how one's experience participating in a question-and-answer forum on the popular website Reddit affected scientists' willingness to participate in a future PES activity.

In ‘Strategic Science Communication: A Guide to Setting the Right Objectives for More Effective Public Engagement’, authors John Besley and Anthony Dudo recognize the existing divide between practice and research in science communication and work to bridge this gap. The authors admirably balance actionable information for practitioners and the theoretical literatures underpinning them. Both of the book’s intended audiences, practitioners and researchers, can glean informative insight from its pages. The text focuses on 12 communication objectives that research suggests are at the core of effective science communication and each chapter is written using straightforward language that makes the book accessible for newcomers to the discipline. For the time-pressed science communication practitioner, each chapter includes a summary with driving questions that relate to implementation of the tactic covered in that chapter. For scholars in science communication, the chapters are good starting points for deeper examination of the related literature. Throughout the book, the authors acknowledge that the strategic communication of science is a significant challenge, one that is not to be taken lightly and can, and should, be evidence-based.

It is often assumed that citizen science is inherently participatory in nature. However, citizen science projects exist along a continuum from data contribution to full co-creation. We invited 19 biologists to explore their conceptions of citizen science. Almost all participants defined citizen science as involving non-scientists in data collection. This definition acted as a barrier for scientists who did not see how citizen science could suit their research objectives. While interviewees perceived many societal and experiential benefits of contributory citizen science, deliberate design is needed to realise the full potential of citizen science for public engagement.

In this commentary, we discuss the challenges associated with carrying out research in science communication in Latin America. We start with the ‘‘invisibility’’ of Latin American studies in the three most prominent international journals in the field (although there has been a growing number of studies in the region). Then, we look to the recent popularisation of science through social media, the political issues facing the region and the massive spread of disinformation and fake news, which has been widely accentuated by the pandemic. We argue that there is an urgent need but also opportunities for innovation and collaborative research in science communication. Finally, we call attention to how the present situation might lead to bigger gaps among researchers from the developing world, including Latin America, and the so-called developed world.

Anniversaries provide great opportunities to celebrate achievements, to look into the future, and to do some self-reflection. I have the honour of doing so in a specific field of science communication that I’m familiar with: the field of citizen science communication, especially with a European focus. I hope this commentary prompts others who are experts in their regions of the world to also reflect on the past and the future for this growing field.

The field of science communication goes by many names. This commentary explores the tensions between plain ‘‘science communication’’ and the more specific ‘‘public communication of science and technology’’. The commentary argues that science communication is not just one thing — and that’s okay.

The argument that we live in times of great change is probably a common thread in the reflection on science communication in most historical phases and contexts. Have there ever been periods of continuity in science communication, in which actors and scholars did not have the perception of substantial transformations and required change? Or to put it more provocatively: have we ever been satisfied with science communication as it was? And if not, why so? One possible, and apparently paradoxical, conclusion is that the focus on change is itself an element of continuity in the history of science communication.

Our 20th anniversary this year is a special milestone for JCOM. It is a time to reflect on our past performance and future prospects. We pause to consider the activities of this journal, and the broad field of science communication over the past 20 years.

What can we say about equity, diversity and inclusion in science communication research over the past 20 years? This is a thorny question because of course we want to be constructive, to recognise change and to respect those whose hard-won research on equity issues has meant so much to many of us. At the same time, it is impossible — given what we know through our research — not to take a critical stance. We critique the status quo of science communication research from a social justice perspective and reflect on how we might change, perhaps bringing what has been marginal (and indeed the marginalised) into the core of science communication research, practice and policy.

In this commentary, I reflect on twenty years of teaching science communication at universities in Australia, Singapore and New Zealand. I discuss many of the challenges and opportunities for people working in the field. Some of the professional teaching experiences, challenges, and lessons I have learned may resonate with colleagues or help newcomers navigate the complexities of academic landscapes.