今年是建国50周年。在此期间,我国航天事业取得了辉煌成就。1956年10月8日,中国第一个火箭导弹研究机构——国防部第五研究院正式成立,它标志着中国航天事业从此拉开序幕。40多年来,中国运载火箭和卫星取得了长足的进步,走出了一条自力更生、拼搏腾飞、屹立于世界 This year marks the 50th anniversary of the founding of the People’s Republic. During this period, China’s aerospace industry has made brilliant achievements. On October 8, 1956, China’s first rocket and missile research institute, the Fifth Research Institute of the Ministry of Defense, was formally established. It marked the beginning of the Chinese space industry. Over the past 40 years, China has made great strides in launching rockets and satellites, has stepped out of a self-reliance, hard-working and taking off and surviving in the world