In this editorial, we discuss the affordances and challenges of emerging technologies in designing and implementing STEM education as a planned theme of this special issue. We view that emerging technologies, such as artificial intelligence (AI) and virtual reality, have a double-edged sword effect on STEM learning and teaching. Exploring the effect will help provide a balanced view that simultaneously recognizes the benefits and pitfalls of the technologies and avoids overstating either one. This themed issue highlights how immersive and AI-driven learning environments advance and transform STEM education in different contexts. It consists of this editorial, three research reviews, and two empirical research articles contributed by scholars from five different regions, including Australia, Hong Kong, mainland China, Singapore, and the USA. They discussed the educational, social, and technological effects of emerging technologies. Each article discusses to various extent about the current research status, what and how the technologies can afford, and what concerns the technologies may bring to STEM education. © The Author(s), 2023.