The moon is down and the stars have set.

月落星沉。

《新英汉大辞典》

This is the unknown face of the moon that is always looking away from us, so we never see it from down here on the earth.

月球未知的一面总是远离我们，所以我们从地球上永远看不到它。

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This is yet another success for Chang'e-4. On January 2, the probe (探测器) became the first lander to touch down on the far side of the moon.

这是嫦娥四号的又一个成功之举。1月2日，该探测器成为第一个降落在月球背面的着陆器。

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Experts have estimated that the moon is a rich depository of the isotope with possible reserves that stretch meters down into the lunar soil that have been carried there by solar winds.

CNN: Mining the moon for a nuclear future

Richards is a guide with Understand Down Under, a company that runs the Moonwalk, a monthly, full moon, sunset to sunrise tour of Royal National Park.

BBC: Moonwalk in Sydney's Royal National Park