Dark matter and dark energy, the sources of many current open questions in astrophysics, will figure in many space-based stories and some planet-based ones.

暗物质和暗能量，当前天体物理学中许多未解之谜的源头，将出现在很多发生在太空和外星的故事中。

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Salamon also stressed that current NASA missions have already played a key role in measuring dark energy.

萨拉蒙还强调当前的美国国家航空航天局任务在暗能量测量方面发挥了重要作用。

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I don't know what it is rushes up in me at the sight of this dark, swift moving current, but a great exultation lifts me up, affirms the deep wish that is in me never to leave this land.

我不明白看到这条黑色的湍急水流时会激起何种情感，不过一种欣喜若狂的心情总是使我不能自持，坚定了我永远不离开这片土地的眷恋之情。

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