[HN Gopher] Giant collision created galaxies devoid of dark matter
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       Giant collision created galaxies devoid of dark matter
        
       Author : nabla9
       Score  : 9 points
       Date   : 2022-05-18 21:27 UTC (1 days ago)
        
 (HTM) web link (www.nature.com)
 (TXT) w3m dump (www.nature.com)
        
       | kevbin wrote:
       | As far as anyone has shown, the whole universe is devoid of dark
       | matter--"the most abundant matter in the Universe", lol.
        
       | Zamicol wrote:
       | "might have"
        
         | JumpCrisscross wrote:
         | > _" might have"_
         | 
         | Sure, fine. But we're seeing two modes of galaxy rotational
         | physics. One mode, uncommon, that matches classical
         | predictions. A second, more common, which matches only if we
         | add a distribution of unseen matter. That's compelling.
        
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       (page generated 2022-05-19 23:02 UTC)