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一九五七年十月四日,苏联成功地发射了第一颗人造卫星,对美国震惊很大。美国感到在航宇领域苏联已走在前面。为了赶上和超过苏联,并夺取航字领域的领先地位,美国专门成立了航宇局。航宇局与国防部共同执行美国的空间计划。它主要负责民用航宇活动,发展民用空间科学技术。但实际上,它也承担军事航空和军用空间科学方面的研究工作。
On October 4, 1957, the Soviet Union successfully launched its first artificial satellite and was greatly shocked by the United States. The United States feels that the Soviet Union has gone ahead in the aerospace field. In order to catch up with and surpass the Soviet Union and take the leading position in the aviation industry, the United States established the Aerospace Bureau. The Aerospace Administration and the Department of Defense jointly implement the US space program. It is mainly responsible for civil aviation activities and the development of civil space science and technology. But in fact, it also undertakes research work in military aviation and military space science.