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.

In this commentary we are concerned with what mainstream science communication has neglected through cultural narrowness and ambient racism: other practitioners, missing audiences, unvalued knowledge, unrecognised practices. We explore examples from First Nations Peoples in the lands now known as Australia, from Griots in West Africa and from People's Science Movements in India to help us reimagine science communication. To develop meaningfully inclusive approaches to science communication, we argue there is an urgent need for the ‘mainstream’ to recognise, value and learn from science communication practices that are all too often seen as at ‘the margins’ of this field.

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.

Many of the earliest drivers for improved scientific literacy and understanding were based on the assumption that science and technology is all around us, and yet there are some spaces and communities that are neglected in science communication contexts. In this brief comment, Clare Wilkinson introduces a series of ten commentaries, which further probe neglected spaces in science communication.

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.

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.

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.

Most adults in the U.S. and worldwide claim a religious affiliation. As an element of identity and worldview, faith informs many individuals' views of science, technology, and society at large. Engagement with faith communities and religious leaders about science can improve public perceptions and trust of scientists, advance evidence-based policy, and improve diversity, equity and inclusion in science fields. This commentary outlines examples and suggests guiding principles for science engagement with faith communities.