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<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>In an expanding universe, what doesn't expand? · HackerPapers discussions</title><link>https://hackerpaper.kaipfister.de/p/gr-qc_0508052/</link><description>Collected HN comments and submissions linking this paper.</description><language>en</language><lastBuildDate>Mon, 02 Nov 2026 11:16:22 GMT</lastBuildDate><atom:link href="https://hackerpaper.kaipfister.de/p/gr-qc_0508052/feed.xml" rel="self" type="application/rss+xml" /><item><title>In an expanding universe, what doesn't expand? — mentioned by acqq</title><link>https://news.ycombinator.com/item?id=19487202</link><guid isPermaLink="false">urn:hackerpapers:mention:gr-qc_0508052:19487202</guid><pubDate>Mon, 25 Mar 2019 22:10:43 GMT</pubDate><description>&lt;p&gt;And since the even the whole groups of galaxies are gravitationally bound, it seems that the galaxies, including our own galaxy, are not &amp;quot;stretching&amp;quot; but remain the same size. And, based on the same principle, everything inside of them also, including us. So back to the cupcake analogy, the raisins are the whole galaxy groups. Also: https://medium.com/starts-with-a-bang/this-is-why-we-arent-e... &amp;quot;As physicist Richard Price once put it, “Your waistline may be spreading, but you can’t blame it on the expansion of the universe.”&amp;quot; https://www.newscientist.com/article/dn8082-cosmic-expansion...…&lt;/p&gt;&lt;p&gt;&lt;a href="https://hackerpaper.kaipfister.de/p/gr-qc_0508052/"&gt;Paper and discussion history&lt;/a&gt;. A mention is not an endorsement.&lt;/p&gt;</description><category>gr-qc</category></item></channel></rss>
