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1977年8月和9月,美国分别发射了“旅行者2号”和“旅行者1号”太空探测器。两个“旅行者”带着详细观测木星、木星卫星、土星、土星卫星和土星环的使命已经工作了20年。目前它们已飞抵太阳系的边陲,并将飞出太阳系。然而令科学家惊奇的是,在如此遥远的深空,它们仍在不断向地面传回信息。 两个探测器的构造大致相同,其中“旅行者2号”重825千克,由6.5万个零件组成。主舱是个环状10面棱柱体,舱内贮放推进剂和各种电子设备。两侧伸出两个支架,安装电视摄像机等10多种仪器设备。主舱头部有一个直径3.65米的抛物面天线,用来和地面通信。探测器装有16个小型火箭发动机,用来调整飞行轨道和方向。“旅行者”号用3台放射性同位素热电发生器
In August and September 1977, the United States launched space travelers “Travelers 2” and “Travelers 1”, respectively. The two Travelers have been working for twenty years with detailed observations of the mission of Jupiter, Jupiter, Saturn, Saturn and Saturn. They have now flown to the fringes of the solar system and will fly out of the solar system. To the surprise of scientists, however, they are still sending messages back to the ground in such a deep, deep space. The structures of the two detectors are roughly the same, with “traveler 2” weighing 825 kg and consisting of 65,000 parts. The main compartment is a ring-shaped 10-sided prism, storage of propellants and various electronic equipment. Extend two brackets on both sides, install more than 10 kinds of equipment such as TV camera. The main cockpit has a 3.65 meter diameter parabolic antenna that communicates with the ground. The detector is equipped with 16 small rocket engines to adjust the flight path and direction. The traveler uses three radioisotope thermoelectric generators