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A comment on Do Neutrinos Explain Matter-Antimatter Asymmetry?. Parent comment

Re:Do Neutrinos Explain Matter-Antimatter Asymmetry? by Retra on Friday July 29, 2016 @11:52PM (#12191541)
Galaxies come into contact regularly though, and we don't have any evidence that they interact in such a way.
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Re:Do Neutrinos Explain Matter-Antimatter Asymmetry? by cperciva on Saturday July 30, 2016 @12:05AM (#12191574)
Galaxies which gravitationally attract come into contact regularly.
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