Dark Energy Ping!.......................
I thought gravity was a distortion in space-time
I was pondering something along these lines a few weeks ago.
If gravity has waves then would gravitational waves ripple back to the center once it reached the edge of the expansion? - similar to when a rock is thrown in a pond and it the wave reaches the edge of the pond and bounces back toward where the rock entered.
If it did would the resulting interference/cancellation result in an approximation of the delta between the current expansion rate and the anticipated rate?
Not settled science yet.
Gravity is by far the weakest fundamental force.
Dark mater/dark energy as an explanation for how the dust and atoms in the universe managed to clump together and form the stars and galaxies ignores the contributions of the far more powerful electromagnetic forces.
Gravitons carry discrete amount of energy and energy has mass.
Gravitons themselves have mass? No, I don’t think so.
Change could be afoot. De Rham has pioneered a radical theory that could hold the key to why the universe is expanding faster and faster and explain the nature of dark energy.
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If your theory isn’t doing well with other scientists, go to mass media.
“Dark Energy”, “Dark Matter”....,,,,whenever you hear the word “dark” in a scientific context, you should immediately be suspicious. Those are just placeholders put n to explain why observations do not match our latest theory. Maybe.....just maybe.....the theory has some things wrong. Einstein obviously got a lot right. It was an advance over Newton who was an advance over superstition and dogma, but....maybe General Relativity is not a complete explanation.
Okay, I am no theoretical physicist, but maybe someone here is. and can explain this in a manner simple enough for those of us who are not in their field.
They tell us that 97 or 98% of the “visible” universe, is moving away from us, due to universal expansion (space itself is expanding) faster than the speed of light...
This means if we were to build a space ship that could reach the speed of light, (the theoretical maximum anything can move through space, including light itself) and launch it in the direction of 97% of the galaxies we can see, it could never ever reach them... EVER... in fact, with each passing moment, even though the space craft is moving at the speed of light, the galaxy it is heading toward would be further away from it, than it was the moment before...
So, the question is, if 97% of the “visible” universe is moving away from us, thanks to expansion, at a speed faster than light... how is that we even see them in the first place? Light leaving those galaxies, heading toward us, would be having the same issues as our hypothetical space craft.... it will never reach us.
So is it simply we are seeing light that left them before they were moving away from us faster than the speed of light? and that is the only reason we can see them? And if that’s true, then there likely would he a lot more galaxies that moved over the barrier to beyond light speed expansion from us whose last light reached us, that could, long before humans evolved?
Anyway, lots of questions.. but one more... Will we ever see a new galaxy ever with these realities? IE one born who’s light hasn’t reached us yet, but isn’t expanding away from us faster than the speed of light ?
Anyway, these are the sorts of questions Insomnia sometimes brings...
Another possibility is that space-time itself is expanding. It allegedly happened in the first second of the “big bang”, why can’t it still be happening?
I would much rather they answer this...
The estimated age of the universe is just shy of 14 Billion years. The estimated radius of the known universe is approximately 45 Billion light years. If the speed of light is the maximum speed, how could the known universe be 3x bigger that physics allows?
No, I did not just make these numbers up...
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another hotfix patch to an already-falsified theory ain’t going to cut it
Dark Energy: The Universal Fudge-Factor