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从1957年苏联发射世界上第一颗人造地球卫星——“卫星”一号开始,至今已经历二十余年。这期间,苏美两国在宇宙开发方面进行了激烈的竞争,相继进行了对月球、金星等的探测和载入宇宙飞船的实验等。同时,在科学探测方面有很多新发现。并在实用性人造卫星方面也有长足的进步:已开始利用国际通信卫星组织的通信卫星进行国际电话及电视的空间转播;利用气象卫星的录像进行电视天气预报等。这充分说明,宇宙开发与人类切身利益密切相关。因此,世界各国竞相开展宇宙空间活动。自美国载人登月飞行的阿波罗计划完成之后,又开始
From the Soviet Union launched in 1957 the world’s first man-made earth satellite - “Satellite” on the 1st, has been going through more than 20 years. During this period, the Soviet Union and the United States conducted fierce competition in the development of the universe and conducted experiments on the detection of the moon and Venus, as well as experiments in space vehicles. At the same time, there are many new discoveries in scientific exploration. And made considerable progress in the practical use of satellites: the start of the use of the satellite communication satellite of International Telecommunications Satellite Organization for the space relay of international calls and television; the use of video recording of meteorological satellites for the forecast of television weather. This fully shows that the development of the universe is closely related to the vital interests of mankind. Therefore, all countries in the world are competing for space activities. After the Apollo program of the United States manned lunar landing flight was completed, it started again