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科普：宇宙存...
source link: https://news.cnblogs.com/n/591615/
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编者按：为什么宇宙的年龄约为138亿年，目前可观测的半径却是460亿光年?听起来这似乎是很让人费解的问题，但学会像天文学家一样思考，你会得出不同的答案。本文译自Medium中原标题为“IfTheUniverseIs13.8BillionYearsOld,H...
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