[HN Gopher] Are the "missing baryons" simply too hot to see?
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       Are the "missing baryons" simply too hot to see?
        
       Author : raattgift
       Score  : 18 points
       Date   : 2023-07-31 19:30 UTC (3 hours ago)
        
 (HTM) web link (bigthink.com)
 (TXT) w3m dump (bigthink.com)
        
       | messe wrote:
       | I find the article nigh impossible to read due to how it's
       | formatted. Yes, I know HN frowns on comments on the formatting,
       | but this is an image followed by a sentence fragment followed by
       | an image followed by a sentence fragment etc.; it's ridiculous.
       | 
       | There's more information in the italic sidebar, than in the
       | single half-phrase below each image. I don't think there's even
       | two paragraphs of text there. An image may tell a thousand words,
       | but nothing in this article has sold me on why it's worth
       | listening to them.
        
         | willcipriano wrote:
         | I think the text is perfunctory and you are supposed to listen.
         | It is horrible.
        
         | _Microft wrote:
         | This seems to be a special form of article: "Mostly Mute Monday
         | tells an astronomical story in images, visuals, and no more
         | than 200 words." (from the end of the article)
        
           | messe wrote:
           | Well, whichever ET it's targeting, I hope they enjoyed it;
           | I'm pretty sure no human did.
        
         | irrational wrote:
         | The text in the sidebar is using such a washed out color that I
         | didn't even see it until you mentioned it and I went back and
         | looked for it. What is wrong with plain black text?
        
       | ars wrote:
       | The theory is that only 1 billionth of the original
       | matter/antimatter mixture survived as matter.
       | 
       | The rest annihilated. But when something annihilates the energy
       | doesn't vanish - so _where did that energy go_??? One person I
       | asked told me it bacame the CMB, but that seems far too weak for
       | the amounts we are talking about.
        
         | marginalia_nu wrote:
         | If you stretch out the CMB across the volume of the entire
         | universe, it seems plausible it would be pretty faint. That
         | r^-3 term on the energy density is pretty small when r is of
         | order ~100 billion ly or more.
        
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       (page generated 2023-07-31 23:02 UTC)