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1925年3月1日

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拓展宇宙的边界

两个螺旋星云被发现距离一百万光年

作者：亨利·诺里斯·罗素

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More by Henry Norris Russell

This article was originally published with the title “Widening the Limits of the Universe” in 大众科学 Magazine Vol. 132 No. 3 (March 1925), p. 165
doi:10.1038/scientificamerican0325-165

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