1986年是人类第一次使用探测器观测哈雷彗星的一年。相隔76年才来一次的哈雷彗星不但给人类带来有关太阳系起源的知识,而且推动了行星探测技术的迅速发展。由于它为人类提供了共同的和平目标,使日本、美国、苏联、欧洲的宇宙研究工作实现了国际合作。日本也以宇宙科学研究为中心使用自己的技术把两个行星探测器“先驱”和“行星-A”送入轨道。由日本的这两个探测器 1986 is the first human observer of Halley’s comet using a detector. Halley’s comet, which came only once in 76 years, not only brings humankind knowledge about the origin of the solar system, but also promotes the rapid development of planetary exploration technology. Since it provided the common goal of peace for mankind, international cooperation has been achieved in the research of the universe in Japan, the United States, the Soviet Union and Europe. Japan has also used its own technology to bring two planetary projectiles, “Pioneer” and “Planet-A,” centered on cosmological science research. The two detectors by Japan