冷战时期,美国和原苏联一直用间谍卫星来窥探对方及其它国家的军事行动,这是他们最机密的活动之一。直到最近双方才向世界公开了他们第一颗间谍卫星的秘密。原苏联早在1957年原苏联成功发射世界上第一颗人造卫星之前,负责运载火箭和卫星计划的总设计师科罗廖夫就曾提出制造间谍卫星的计划。1958年,原苏联批准了“东方”号载人飞船计划,于是科罗廖夫毅然决 During the Cold War, the United States and the former Soviet Union have used spy satellites to spy on the military operations of each other and other countries. This is one of their most secret activities. Until recently, the two sides opened the world to the secrets of their first spy satellite. The Former Soviet Union As early as 1957, the Soviet Union successfully launched the world's first satellite, the chief architect responsible for the launch vehicle and satellite program, Korolev, proposed plans to build a spy satellite. In 1958, the former Soviet Union approved the “East” manned spacecraft program, so Korolev resolutely decided