As robots show up in more and more settings and play an ever-increasing role in many aspects of everyday life, the need to understand how robots and people can co-exist and how they can work together—effectively and safely—grows apace. This is the focus of the study of human-robot interaction, a field that deals with such questions as how can humans and robots understand and communicate with each other, how can people and robots can collaborate to complete shared tasks, and how can robots learn to co-exist and serve people in shared environments. WPI experts on human-robot interaction are developing nursing robots that can help treat patients in quarantine, exploring how robots can be integrated into the workplace, and looking at how space-based robots can better collaborate with their human controllers.