When embarking on the project 18 months ago, its members (including Saul Perlmutter, who won the Nobel prize for physics this month for his work on dark energy) were mostly new to climate science.

当18个月前着手这项研究时，小组的研究人员(包括珀尔·马特，这个月因为致力于暗能量研究而获得诺贝尔物理学奖)大多是首次进入气候科学研究。

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When the mind is clear, a dark room has its blue sky.

头脑清醒时，暗室也自有蓝天。

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Nevertheless, when we are confronted with a different culture, we should be sensible enough to absorb its essence and to resist its dark side.

然而，在我们面临不同文化时，应该充满理智地取其精华、去其糟粕。

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We should have a clearer idea when the results from the Dark Energy Survey and its massive 570-megapixel camera are published in five years' time.

BBC: Getting the measure of dark energy

That kind of talk was common during what Iraqis call the "dark years" when the sectarian warfare was at its worst and al Qaeda and other extremists controlled swaths of the country.

CNN: Analysis: Baghdad weary amid pullout and death

Nelson has created a beautifully moving look at a dark time in America, when government suspicion of even its most lustrous citizens could escalate into threats against their personal freedom and livelihoods.

WSJ: Review: 'Nikolai and the Others' bittersweet drama