u/FaithlessnessFar6431

I found out that the total mass ejected or slignshot by galaxies, black holes, quasars, galaxy mergers into empty space in the observable universe is approximately the equivalent to the mass of 10 suns per milisecond. That mass can travel about 10x to 300x faster than typical speed of planets.

Is it possible that the accumulation of such significant mass and velocity contributes to expansion of the universe ?

Fast ejected mass creates ripples in spacetime, those ripples accumulate and possible assist (besides other factors) in affecting expansion ?