航天飞机是美国七十年代的重点发展计划。整个计划经过十年的艰苦努力,消耗了近百亿美元的巨额资金,生产出的第一架航天飞机“哥伦比亚号”在1981年先后进行的两次轨道试验飞行都基本上获得了成功。它的试航成功无疑是航天史上的一次重大突破,引起了世界各国,尤其是宇航界的强烈反响。但是,航天飞机计划也象六十年 Space shuttle is the United States in the seventies key development plan. The entire program, after a decade of painstaking efforts, consumed nearly a billion dollars in huge amounts of money and the two orbital pilot flights produced by the first space shuttle Columbia, which was produced in 1981, were basically successful. Its successful flight trial is undoubtedly a major breakthrough in the history of spaceflight and has aroused strong repercussions from all countries in the world, especially the aerospace community. However, the space shuttle program is also like sixty years