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We have studied approx 4.6% of normal/ordinary matter in the universe and everything till now we observed are a part of this 4.6%

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I always have doubt. this 4.6% include all the matters and energies apart from dark matter and dark energy

4.6% Includes

  1. Normal matter
  2. Normal energies (Cosmic, Mass-energy, photon, etc)
  3. Anti-matter
  4. exotic matter
  5. virtual particles
Rajeev Ranjan Sharma
  • 261

1 Answers1

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Yes, this 4.6% includes everything we know about except dark matter and dark energy. So it includes atoms, baryons, leptons, neutrinos, antimatter, cosmic rays, and the mass-energy from virtual particles as well (much of the mass of the proton and of atoms comes from that). Depending on your definition of "exotic matter", that's either hypothetical and so everybody's guess, or things like positronium which isn't stable but would be part of those 4.6%, or could be a term for dark matter, in which case it would be part of, well, dark matter.

rfl
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