As space continues to attract substantial public and private investment and has become ever more active, the third edition of this book has been updated to cover recent developments. This includes the legal bases of UN Resolution 76/3, the Space3030 Agenda, which envisages ‘space as a driver of sustainable development’ and sets out an extensive programme for the future. The work also takes account of adaptations and augmentations to basic space treaties. It examines the increasing commercialisation of space in areas such as space tourism and space mining, for which four states have already adopted relevant legislation. The impact of new technologies such as satellite constellations and micro-satellites are also scrutinised. At a time when space tourism is available to those who can afford it and when the moon will shortly be revisited with a prospect of permanent bases, this third edition provides a firm base for the next generation of space lawyers. As with previous editions, the work draws from governmental, international organisational and other authoritative sources as well as the relevant literature in the field. The book will be an essential and comprehensive resource for students, academics and researchers as well as space agencies, governments and space-active companies. It will also be of value to technical operatives and managers who need to know the legal context within which they work.