Namira Salim (Pakistan), Trevor Beattie (UK) and Ron Rosano (US) flew on Virgin Galactic's Galactic 04 mission. Salim became the first Pakistani astronaut to fly to space. In the cabin was Virgin ...

Abstract: Space-air-ground integrated networks (SAGINs) face unprecedented security challenges due to their inherent characteristics, such as multidimensional heterogeneity and dynamic topologies.