【摘 要】
：
“宇宙岛”是19世纪中叶德国科学家洪堡提出的一个概念,他是为了描述宇宙中像我们所在的银河系一样的天体系统.他把这种天体系统形象地比喻为大海中的小岛,而将德文中的welt(
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“宇宙岛”是19世纪中叶德国科学家洪堡提出的一个概念,他是为了描述宇宙中像我们所在的银河系一样的天体系统.他把这种天体系统形象地比喻为大海中的小岛,而将德文中的welt(宇宙)和inseln(岛)连用,命名它为weltinseln,即宇宙岛.宇宙岛概念提出之后,引起了争论,在经历了一番曲折的历程,直到20世纪发现了河外星系才得到证实和确认.rn
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