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BernieM
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Given that a photon or neutrino creates a gravitational effect, and given that the CMB, microwave photons emitted 13.8 billion years ago are still around in the universe, then it would follow that ALL photons or neutrinos that have not since been captured should also still be present in the universe, like the CMB. What is the overall universal net gravitational value contributed by all similar particles emitted since the big bang?
It would appear that over the last 13 or so billion years the universe is gaining 'gravitional weight' so to speak.
It would appear that over the last 13 or so billion years the universe is gaining 'gravitional weight' so to speak.
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