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《探月准备》
长期以来,NAZA一直在地球上寻找与月球类似的景观,为探月任务作准备。其中就有亚利桑那州熔岩覆盖的圣弗朗西斯科火山区,那里遍布着数百座死火山。宇航员卡德曼(左)和福伊斯特尔曾在此跋涉了数千米,以测试探月乘组人员在恶劣的月球光照条件下,仅靠地图辨识方向的能力。摄影:Dan Winters
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