39 Cargo transportation; Junk, trash and debris removal; Transport and delivery of goods; Transport by aircraft; Transport of goods; Transport of cargo, modularly-swappable hosted payloads, and construction materials to space facilities, hosted payload platforms, and in-space assembly/manufacturing sites by microsatellite-scale servicing tugs; Transportation of cargo, modularly-swappable hosted payloads, and construction materials to space facilities, hosted payload platforms, and in-space assembly/manufacturing sites by microsatellite-scale servicing tugs