日本计划在九十年代中期进行月球和行星探测。月球被看作未来空间探测的主要目标。日本科学家相信,如果能够揭示迄今还未勘探过的区域的结构和组成,这会引起在月球科学领域中的一场革命。日本宇宙航空研宄所工作组已经研制了包括 r射线频谱仪在内的各种遥感仪器,同时在努力研制 Japan plans to carry out lunar and planetary exploration in the mid-1990s. The moon is seen as the main target of future space exploration. Japanese scientists believe that if one can reveal the structure and composition of hitherto unexplored areas, this will cause a revolution in lunar science. The Japan Aerospace Exploration Research Institute’s working group has developed a variety of remote sensing instruments including the r-ray spectrometer, while working hard to develop