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宇宙黑暗时代何时终结？这种原子是开启黑暗的钥匙
source link: https://tech.sina.com.cn/d/s/2020-06-17/doc-iirczymk7414012.shtml
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新浪科技讯北京时间6月17日消息，宇宙曾经在数亿年的时间里一片黑暗，而一种原子可能就是开启这个被遗忘时代的钥匙。很久以前，在第一颗恒星形成之前的几百万年里，整个宇宙一片黑暗。这段宇宙“黑暗时代”从大爆炸后约40万年开始，持续了数亿年，标志着
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