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.