As the US accuses Russia of developing nuclear-armed satellites, what does international law say about weapons of mass destruction (WMD) in outer space? Space law expert, Professor Frans von der Dunk discusses the weaponization of outer space and the laws that govern weapons beyond the planet. The deployment of weapons of mass destruction in outer space presents not only a significant threat to global security but also a complex challenge to international law, explains Professor von der Dunk, a leading authority on space law at the Nebraska College of Law.