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Question Gravities effect on the universes boundary

Nov 30, 2019
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Ok from what I understand gravity has very very long range effects, it travels at the speed of light and it’s constant. Until the mass causing it is destroyed or breaks up.

My question is, it’s likely gravity waves are close to the outer edge of our universe, as only light is as fast, if that’s a correct assumption of mine, what effect would all those gravity waves be having as more and more overlapping gravity waves pass the outer edge of mass of our universe?

do they build up or cancel out?

Is this why the universe is expanding faster as the effect of gravity waves moving past the outer mass of the universe is pulling that mass with it?

or is the gravity pulling its self towards what’s outside the universe. And pulling the universe along with it?

ok they are likely all dumb questions, and it’s for my Curiosity only, thanks for any replies.
 
Apr 11, 2020
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Dave643,
Gravity does not exist outside of galaxy groups. Also, gravity is the affect of spacetime being bent by mass. Essentially, gravity does not exist outside of galaxy groups, because there is no mass to bend spacetime; therefore there is nothing to form gravity. Now remember, the fabric of spacetime itself is being expanded. So the gravity in the galaxy groups stays where it is. It does not travel to the edge of the universe. See the following link for more information. Does the influence of gravity extend out forever?
I hope this helped to answer some of your questions! :)
 
Nov 30, 2019
31
8
35
Dave643,
Gravity does not exist outside of galaxy groups. Also, gravity is the affect of spacetime being bent by mass. Essentially, gravity does not exist outside of galaxy groups, because there is no mass to bend spacetime; therefore there is nothing to form gravity. Now remember, the fabric of spacetime itself is being expanded. So the gravity in the galaxy groups stays where it is. It does not travel to the edge of the universe. See the following link for more information. Does the influence of gravity extend out forever?
I hope this helped to answer some of your questions! :)
Hi thanks I followed the link. It’s as good a theory as any theory we have, one point, It could relate to the hammer at the end.

I thought they think dark matter makes up the theoretically missing gravity in the universe and that It exists in the spaces between galaxies?

which if the Big Bang was a scatter gun not a balloon then that dark matter is what our space time expanded out into. So the boundary in my question I think it’s called dark matter because they think it’s opposite to the matter we interact with so it may attract mass (gravity) while having no space time mass it’s self. It may also as it’s out side space time be faster than light, as light is governed by space time, Or the rules of regular matter.

I did also think gravity is supposed to extend billions of light years but maybe that is now debunked.
This is the problem when we just don’t know, we get lots of plausible theories, until one is experimental proven or the math works it’s open to change.
like I said thanks for the reply it’s always interesting to learn.
 

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