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科学家第一次测量宇宙全部星光，证实令人不安的结论
source link: https://tech.sina.com.cn/d/s/2018-12-06/doc-ihmutuec6654594.shtml
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来源：环球科学ScientificAmerican4×1084，这个巨大的数字实际上是宇宙历史中所有恒星发出的光子的总数。4×1084是个什么样的概念？如果我们的太阳（只剩下几十亿年的寿命）能够继续燃烧1032年，那么它所能释放出的光子总数
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