Astronomy Picture of the Day——阿波罗12号造访勘测者3号
Apollo 12 Visits Surveyor 3
Image Credit: Apollo 12 Crew, NASA
Explanation: Apollo 12 was the secondmission to land humans on the Moon. The landing site was picked to be near thelocation of Surveyor 3, a robot spacecraft that had landed on the Moon three years earlier. In the featured photograph, taken by lunar module pilot AlanBean, mission commander Pete Conrad jiggles the Surveyor spacecraft to see howfirmly it is situated. The lunar module is visible in the distance. Apollo 12brought back many photographs and moon rocks. Among the milestones achieved byApollo 12 was the deployment of the Apollo Lunar Surface Experiments Package, which carried out many experiments including one that measured the solar wind.
阿波罗12号造访勘测者3号
阿波罗12号是第二艘载人登月的航天器。登陆地点被选在之前三年登陆月球的航天器勘测者3号附近。在这幅由登月舱驾驶员Alan Bean拍摄的照片中，任务指挥官Pete Conrad正在轻摇勘测者号航天器以确认它是否稳固。登月舱则在不远处。阿波罗12号给我们带回了很多照片和月岩。它取得的里程碑之一是阿波罗月面实验装置的展开，完成了许多实验，其中包括测量月面太阳风。
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Astronomy Picture of the Day——蜘蛛星云的中心