航天飞机将于周日晚上与国际空间站分离，开始两天的返回地球之旅。
The shuttle will undock from the ISS later on Sunday night and begin its two-day journey home.
今天晚上地球的天然卫星月球在其轨道上离地球仅有356575公里远，这使得月球处于离地球最近的位置上，而这也是极为罕见的有关月球的事件。
Tonight's rare lunar occurrence, when Earth's natural satellite is only a mere 356, 575 kilometers out in orbit, brings the moon to its closest position to Earth.
地球的阴影将在西海岸晚上7点，东海岸晚上10点开始遮蔽月球。
Earth's shadow is expected to blot out the moon beginning around 7 p.m. on the West Coast and 10 p.m. on the East Coast.
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