ELi5 If the universe is expanding, what is it expanding into? Submitted by cashmoneyhash t3_12776bk on March 31, 2023 at 2:26 AM in explainlikeimfive 57 comments 20
shotsallover t1_jee2vql wrote on March 31, 2023 at 10:35 AM Reply to comment by Pyryn in ELi5 If the universe is expanding, what is it expanding into? by cashmoneyhash You should read Flatland if you haven't. Permalink Parent 1
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