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宇宙究竟有多大?新计算让宇宙半径小了3.2亿光年

 6 years ago
source link: http://tech.sina.com.cn/d/s/2016-08-18/doc-ifxvcsrm1764029.shtml
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文章来源:科技日报科技日报北京8月17日电(记者刘霞)仰望夜空时人们不禁会问:宇宙究竟有多大?据美国商业内幕网站消息,该国科学家利用新数据进行的计算给出了答案:可观测宇宙的半径为453.4亿光年,比13年前科学家们得出的数据少了3.2亿光年

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