1969年9月,在靠近美帝亚里桑那州的图森的月球激光观测站和阿波罗11号星际航行员安置在月亮表面的向后反射器靶子之间完成了激光测距。这些距离测量的完成表明,已在月球目标处于黑暗中时记录下了反射回来的激光信号。这一结果是美帝空军剑桥研究实验室打算与国家航空和宇宙航行局的阿波罗月球探索局联合进行的许多精密激 In September 1969, laser ranging was completed between the Moon Laser Observatory in Tucson, near Middle Meadows, Arizona, and the retroreflector target, placed by the astronaut Apollo 11, on the moon’s surface. The completion of these distance measurements indicates that the reflected laser signal was recorded when the moon’s target was in the dark. This result was the result of many sophisticated stimulations conducted by the CAMS Research Laboratory with the NASA Apollo Lunar Exploration Agency