The next-generation communication technology is building on the cooperation of terrestrial networks with non-terrestrial networks that contain mega-constellations such as high-altitude platform station and low-Earth orbit satellites. On the other hand, humanity has embarked on a long road to establish new habitats in other planets by increasing its searches in space. This deems the cooperation of non-terrestrial networks with deep space networks necessary. In this regard, reconfigurable intelligent surfaces (RISs) are discussed to improve and escalate this collaboration owing to the fact that they perfectly match with the size, weight, and power restrictions of the operational environment of space. This study presents a comprehensive framework of RIS-assisted non-terrestrial and interplanetary communications by pinpointing challenges, use cases, and open issues along with simulation results.

翻译：下一代通信技术是在地面网络与拥有超星系的非地球网络合作的基础上建立的,这些网络包括高空平台站和低地球轨道卫星等超星系;另一方面,人类通过增加在空间的搜索,走上了在其他行星建立新的生境的漫长道路;认为非地球网络与深空网络的合作是必要的;在这方面,讨论了可重新配置的智能表面(RIS)改进和升级这一合作的问题,因为它们与空间操作环境的大小、重量和功率限制完全吻合;这项研究通过确定挑战、使用案例和与模拟结果一起的公开问题,为RIS辅助的非地球和行星际通信提供了一个全面框架。