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来自维基百科,自由的百科全书
NGC 1052-DF2是一个位于鲸鱼座的超稀疏星系。有人提出该星系几乎不包含任何暗物质。2019年3月20日,研究人员宣布发现了第二个缺乏暗物质的超稀疏星系,即NGC 1052-DF4[4]。
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