This volume contains the proceedings of the 64th Colloquium on the Law of Outer Space held virtually in October 2021. This volume contains the proceedings of the 64th Colloquium on the Law of Outer Space held virtually in October 2021, as well as the report of the IISL Standing Committee on the Status of International Agreements Relating to Activities in Outer Space. About the IISL; Board of Directors 2021; New IISL Members Elected 2020-2021; Standing Committee on the Status of International Agreements Relating to Activities in Outer Space; Statement by the Board of Directors of the International Institute of Space Law (IISL) on the Consideration of the Interests of the Public and Other Stakeholders in the Authorization and Continuing Supervision of Commercial Space Activities; 64th IISL Colloquium On The Law Of Outer Space Sessions; 1. Young Scholars Session; 2. International Cooperation on the Way to the Moon and Mars; 3. A New Look at (how far are we with) Space Traffic Management; 4. The relations between Trade Law, Finance and Space Law; 5. National Space Law and Security – An Update; 6. NewSpace and Space Law; Interactive Presentations; Author Index