The subject of this episode is ‘Space, law and constitutions’, considering the laws and institutions that shape a wide variety of activities beyond the earth. Discussants are Timiebi Aganaba (science advisory board member of the SETI institute and Assistant Professor of Space and Society in the School for the Future of Innovation in Society at Arizona State University, where she is also on the Law School Faculty), Adam Bower (Senior Lecturer in the International Relations at the University of St Andrews), and Michael Byers (Canada Research Chair in Global Politics and International Law at the University of British Columbia). The episode is chaired by John Hudson (Professor of Legal History, University of St Andrews). [Note: This episode was recorded on 15 February 2022, before the Russian invasion of Ukraine.]