美国的间谍卫星是世界上最先进的,可以说全世界都在美国间谍卫星的监控之下。1960年8月18日,美国发射了世界上第一颗军事成像间谍卫星。这种卫星目前已经发展至第六代,地面分辨率达0.1米,工作寿命为8年,卫星在光线不足或完全黑暗的情况下也能清晰地拍摄地面的目标。美国政府正 The spy satellite of the United States is the most advanced in the world. It can be said that the world is under the surveillance of American spy satellites. On August 18, 1960, the United States launched the world’s first military imaging spy satellite. This type of satellite has now been developed to the sixth generation, with a ground resolution of 0.1 meters and a working life of eight years. The satellite can also clearly capture ground targets when there is insufficient light or complete darkness. U.S. government