北范登堡空军基地航天器处理设施的工作人员准备开始处理重力探测器B实验,包括设置机械和电气地面支持设备、进行必要的连接和调节航天器电池。重力探测器B将向低地球极轨道发射一个由四个陀螺仪组成的有效载荷,以测试爱因斯坦广义相对论的两个非凡预测:大地效应(空间和时间是如何因地球的存在而扭曲的)和框架拖曳(地球的旋转是如何拖拽空间和时间的)。一旦进入轨道,每个陀螺仪的旋转轴将在18个月内被监测,当它通过本地时空传播时,观察和测量这些效应。该实验由斯坦福大学、洛克希德马丁公司和美国宇航局马歇尔航天飞行中心共同开发。
Gravity Probe B
Workers in the spacecraft processing facility on North Vandenberg Air Force Base get ready to begin processing the Gravity Probe B experiment, including setting up mechanical and electrical ground support equipment, making necessary connections and conditioning the spacecraft battery. The Gravity Probe B will launch a payload of four gyroscopes into low-Earth polar orbit to test two extraordinary predictions of Albert Einstein’s general theory of relativity: the geodetic effect (how space and time are warped by the presence of the Earth) and frame dragging (how Earth’s rotation drags space and time around with it). Once in orbit, for 18 months each gyroscope’s spin axis will be monitored as it travels through local spacetime, observing and measuring these effects. The experiment was developed by Stanford University, Lockheed Martin and NASA’s Marshall Space Flight Center.

标签: 太空探索, KSC-03PD-2740

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