以下为句子列表：
英文: 25 March 2003 -- Supermassive black holes, notorious for ripping apart and swallowing stars, might also help seed interstellar space with the elements necessary for life, such as hydrogen, carbon, oxygen and iron, scientists say.
中文: 科学家们说，以吞噬恒星而闻名的超大质量黑洞和很可能也会产生生命需要的一些元素，如氢，炭，氧和铁。
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英文: Having visited all the outer planets except Pluto, they are on their final quest - to locate the shifting boundary between the Sun's domain and the realm where interstellar space begins.
中文: 它们访问了除冥王星之外所有的太阳系外层行星，目前正在进行最后的探索--确定太阳系与星际空间之间游移不定的边界在何处。
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英文: Scientists could tell it came from interstellar space because it was not affected by the presence of any planet, and because it flowed from precisely the same direction as neutral interstellar gas, which had been detected before.
中文: 科学家能断定它来自星际空间是因为它没有受到任何行星的影响，并且和以前探测到的中性星际气体来自同一方向。
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