宇宙的年龄在140亿年左右,为什么人们能观测到300亿光年的东西?距离地球300亿光年的光要传播到地球,据我所知(高中一年级水平)应该要300已亿年才能够传播到地球才对,既然如此:宇宙的实
来源:学生作业帮助网 编辑:作业帮 时间:2024/10/15 02:03:29
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