随着探索外部空间事业的不断发展,人类已不可能仅仅停留于对外部世界的了解上,如日、美等国家已计划在月球建立工厂、旅游基地、甚至在适当的时候移民于月球或太空。这,离开自己祖祖辈辈生息于斯的地球之外生活的设想,听起来总是让人怦然心动、跃跃欲试。但时至今日,作为这种设想的先行涉足者们 With the continuous development of the cause of outer space, it is impossible for mankind to stop only in understanding the outside world. For instance, Japan, the United States and other countries have planned to set up factories and tourist bases on the moon and even immigrate to the moon or space at an appropriate time . The idea of ​​living outside of Earth, where one’s own ancestors had lived for generations, always sounds tempting and tempting. But up to now, as a pioneer of such ideas