1989年5月11日,日本发表了由科学技术厅的航空宇宙研究所、日本制作所等单位负责设计的在月球上建设永久基地的方案,这一基地将于21世纪初实现。该基地方案的初步设想为,从地球上搬运100吨左右的物资到月球上,建立最初的载人基地,由8人经营,10年后发展成16人。居住房屋设定为直径4米、长15米的圆筒形,用原子能发电。基地经五个阶段 On May 11, 1989, Japan announced a plan to build a permanent base on the moon designed by the Institute of Aeronautics and Astronautics of the Office of Science and Technology and the Japanese Institute of Production. The base will be realized in the early 21st century. The initial plan for the base project was to transport 100 tons of materials from the earth to the moon and establish an initial manned base operated by 8 people and 16 people in 10 years. Residential housing set to 4 meters in diameter, 15 meters long cylindrical, with atomic energy. Base after five stages