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.

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.

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.

Digital citizen science projects differ greatly in their goals and design. Tensions arise when coordinators' design choices and conceptions of citizen science conflict with users' motivations and expectations. In this paper, we use a combination of qualitative methods to gain new insights into the ways citizen science is understood and implemented digitally. This includes a study into the affordances of two citizen science portals for bird observations, and qualitative interviews with users and coordinators of the portals. This reveals tensions related to data sharing, community hierarchies, and communicated expectations. Awareness of these tensions can benefit the future design of online citizen science projects.

Engaging communities at risk of social exclusion poses a big challenge for science communicators. We schematize a framework for projects using science & art to promote social inclusion, composed of 3 phases — design, plan and collaboration; implementation; and evaluation. We present a case study that aimed to engage with a community of migrant senior women, mostly illiterate. Our findings suggest high engagement was achieved by building trust, involving emotions, choosing a relatable topic and following participatory practices. Inclusive activities occurred on the short-term, but for medium-term impact, community insiders need to be regarded as a second audience.

From a strategic communication perspective, for any communication to be effective, it must be audience-centered, with content and delivery channels that are relevant to its intended target. When trying to reach culturally specific communities or other groups that are not otherwise connected with science research, it is crucial to partner with community members to co-create content through media that is appealing and culturally competent. This commentary considers some examples including storytelling through ‘fotonovelas’ and radio stories, community drama and serious games.

STEMroller events disrupt stereotypes surrounding STEM professionals within a neglected space in science communication; a sports hall. Roller derby inspired STEMroller, both the do-it-yourself culture and creating a space for women and genderqueer people to be themselves. Over 100 female and non-binary STEM professionals volunteered to put this event together for students aged 11–19. STEMroller includes networking with people from over 30 science, technology engineering and mathematics industries, watching roller derby and trying it out — albeit in socks not on wheels. STEMroller uses a pool of engaged volunteers to create a unique and memorable event. Feedback after the event was hugely positive.

The medical arena often encounters ‘taboo’ topics. These appear especially prevalent in women's health conditions, such as menstruation and menopause. Taboos are exacerbated by medical uncertainty, complex jargon, and patients' misunderstanding of the human anatomy — impacting patients' ability to actively participate in a shared decision-making process with their doctor. In this commentary, we look at one example of a medical procedure where taboo topics pose a number of challenges in doctor-patient communication — hysterectomy. We explore whether science communication can address these challenges, as well as contribute and collaborate in other medical scenarios, thereby benefiting both disciplines, and ultimately, patients.

Despite Mexico has coasts in the Pacific and Atlantic oceans, people's connection towards the sea and marine environments is quite poor. Our commentary focuses on Mexico's coral reefs, relevant tropical ecosystems to human and oceanic welfare, and it emerges from the experience of the production of an itinerant coral reefs exhibit in Mexico, committed to the conservation and awareness of this threatened habitat. The UN Decade of Ocean Science for Sustainable Development starts in 2021 and represents an opportunity to increase initiatives for public communication of science on marine and oceanic issues in Mexico and the world.

This article describes an example of science engagement striving for social justice by invigorating neglected spaces. The pop-up science centre “Knowledge◦Room“ in Vienna encourages learning, participation and engagement and provides accessibility to different groups regardless of their background. Based on a case-study of a bottom-up event at the Knowledge◦Room, we show how science communication can create a trust-based connection with disadvantaged groups in society and inspire their curiosity in science. We argue that science communication can be used as a tool for advancing social justice in the wider sense and facilitate encounters between diverse groups within society.