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如何证明发生过宇宙大爆炸？夜空是黑色 存在类星体
source link: http://tech.sina.com.cn/d/s/2018-04-25/doc-ifzqvvsa9017967.shtml
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新浪科技讯北京时间4月25日消息，据国外媒体报道，约138亿年前，如今的可观测宇宙还仅有一个桃子大小，且温度超过1万亿摄氏度。这话听起来简单，但非常大胆，做出这样的论断也并非易事。就在一百年前，人们还认为这种说法极为荒谬。而如今我们说出这样
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