What would the largest anti-matter object be?

  • Thread starter Nasher
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  • #1
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Main Question or Discussion Point

Any suggestions to what the largest anti-matter object would be?

Would it be just anti-particles, or would it be anti-hydrogen, or anti-carbon, larger anti-atoms, or multiple anti-atom object, or anti-one_kilogram object, or anti-planet,
or antistar, or anti-galaxy, or anti-cluster, or anti-universe?
 

Answers and Replies

  • #2
mathman
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It could be any of the items proposed. However, as far as actual existence is concerned, there isn't any evidence of any anti-matter except at the particle level or anti-hydrogen (created in laboratories).
 
  • #3
DaveC426913
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There are wild speculations that segments of the universe could contain whole antimatter galaxies. We wouldn't know it since photons are matter-antimatter agnostic.

But it is exceedingly unlikely.
 
  • #4
mathman
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There are wild speculations that segments of the universe could contain whole antimatter galaxies. We wouldn't know it since photons are matter-antimatter agnostic.

But it is exceedingly unlikely.
Immediately after the big bang, the universe was much more crowded, so it is highly unlikely that anti-matter could have been segregated from matter.
 
  • #5
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Immediately after the big bang, the universe was much more crowded, so it is highly unlikely that anti-matter could have been segregated from matter.
I think the segregation is supposed to have occured during rapid inflationary epochs
 
  • #6
mathman
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I think the segregation is supposed to have occured during rapid inflationary epochs
Thigs were flying around so fast, it is hard to see that anything could segregate.
 
  • #7
Chronos
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It is highly unlikely macroscopic amounts of anti-matter [more than atomic particle sized] exist within our universe. There is no viable mechanism explaining how they became segregated. Were they not segregated, life on earth would be difficult to explain. This is a fairly significant mystery in any cosmological model. There is no mechanism to explain the disparity, but an abundance of evidence exists suggesting the disparity is real.
 
  • #8
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nearly impossible for there to be large ammounts of anitmatter.
 

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