美国宇航局的月球轨道探测器(LROC)在月球表面拍到的一座天然桥梁。

NASA's LROC spacecraft reveals a natural bridge on the Moon.

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由于月球阻碍了与探测器的直接无线电通信，中国首先必须把一颗人造卫星送入月球轨道上的一个点，人造卫星可以从那里向航天器和地球发射信号。

Because the moon's body blocks direct radio communication with a probe, China first had to put a satellite in orbit above the moon in a spot where it could send signals to the spacecraft and to Earth.

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中国一座太空探测器在发射八天之后成功进入月球周围的轨道。

A Chinese space probe has successfully entered orbit around the Moon eight days after it was launched.

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