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比真空更冷！宇宙中最冷的地方，竟然离我们这么近
source link: https://tech.sina.com.cn/d/s/2019-02-12/doc-ihrfqzka5074741.shtml
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来源：环球科学撰文：EthanSiegel、StartsWithABang团队不考虑实验室中人造的低温环境，宇宙中最冷的地方在哪里？自然条件下的最低温度又是多少？在我们的想象中，最冷的地方应该空无一物——没有移动的粒子、没有额外的辐射，只有
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