expend space station modules. An expendable modules is space structure that has a flexible outer shell. When it is in orbit, the modules is inflated, creating a larger work, play and living area for astronauts. The expandable modules were designed by NASA for a space programme. When this was cancelled, Bigelow Aerospace was giving the right to commercialism some of the technology. A major advantage of inflatable modules is that the walls are flexible, which is better than rigid ones for protecting a modules from the impact of space debris. The expend modules could be used for space tourism and for orbital hotels. Bigelow plans to launch in the near future an orbital resort, which will probably be called CSS