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只有葡萄柚那么大？远古黑洞可能就藏在太阳系边缘
source link: https://tech.sina.com.cn/d/s/2020-08-05/doc-iivhvpwx9359250.shtml
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来源： 知社学术圈柯伊伯带是太阳系最外围的一个小行星带，范围从海王星轨道（30个天文单位）之外，一直延伸到距离太阳50多个天文单位的地方。这里除了有人们最早发现的冥王星之外，天文学家还注意到一些奇怪的天体（KBO），它们有些聚成团
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