《黑暗冰山》(图6 - 8)是一次对冰山的移动和行为的研究：它们如何互相隔开。
Dark ice (images 6-8) is a study of icebergs' movements and behaviors; the way they space themselves out.
研究人员利用“网膜电图”机测试视野——在一个黑暗的箱子里从各方位向鲨鱼发射一丝微弱的光。
The researchers used a machine called an "electroretinogram" to test the field of vision - firing a tiny beam of light at the shark in a darkened tank from all directions.
天文学家探索NGC346星云，识别出一个在黑暗中排列的恒星胚胎群，就是这幅图的右侧可见的交叉的星尘线。
Exploring NGC 346, astronomers have identified a population of embryonic stars strung along the dark, intersecting dust lanes visible here on the right.
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