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在我国第一颗人造地球卫星成功发射30周年纪念日前夕,由20多位航天科技领域的中国科学院院士和中国工程院院士组成的评选委员会,在北京评出了中国空间科技20世纪后30年间十大新闻事件.1.1970年4月24日,中国第一颗人造卫星东方红一号用长征一号运载火箭发射成功,标志着中国进入了太空时代.2.1975年11月26日,长征二号运载火箭成功发射返回式卫星,卫星在轨运行3天后,按预定计划顺利回收.中国航天器大气层再入技术得到重大突破,成为世界上第三个掌握卫星回收技术的国家.
On the eve of the 30th anniversary of the successful launch of China’s first man-made earth satellite, a selection committee composed of more than 20 academicians of the Chinese Academy of Sciences and Chinese Academy of Engineering in the field of space science and technology commented in Beijing on the 30th anniversary of the 20th anniversary of the establishment of China’s space science and technology On April 24, 1970, the successful launch of China’s first satellite, Dongfanghong I, with the Long March Launch Vehicle symbolized China’s entry into the space age. 2. On November 26, 1975, the Long March II launch vehicle The successful launch of the return satellites, satellites in orbit operation 3 days after the smooth recovery schedule.China’s spacecraft reentry into a major breakthrough in technology to become the world’s third master satellite recovery technology in the country.