Our pet hypothesis on Dark Energy:
The Universe is an ongoing explosion.
It started with the velocity of expansion, that's where the energy for things moving away from each other came from. This phenomenon is observed as all objects in the Universe moving away from each other.
Gravity slowed it down, but didn't stop/reverse it. If it could, that would've happened in the very early days when it energies like heat stopped actively causing expansion.
Before gravity could have a chance to stop/reverse the Universe's expansion, objects (like galaxies) became far enough away that their light could never reach each other (and so, neither could their gravity).
As an object leaves the observable universe of another object, they both no longer have any gravitational effect on each other. Before that, they have some minuscule but real effect.
As that effect is lost by the objects leaving each other's observable universe, the only movement energy they have relative to each other is the expansion energy the Universe was born with, and so the ratio the of effects of expansion energy to compression energy on those objects increases.
This phenomenon of objects leaving the observable universe of an object compounds:
as more objects leave one's observable universe, that observable universe experiences less gravitational compression force counteracting its natural expansion force, so objects move away from each other faster than they did before other objects left their observable universe,
which in turn causes objects to leave that observable universe faster,
which causes objects to move away from each other faster,
repeat ad infinitum
The Universe is an ongoing explosion.
It started with the velocity of expansion, that's where the energy for things moving away from each other came from. This phenomenon is observed as all objects in the Universe moving away from each other.
Gravity slowed it down, but didn't stop/reverse it. If it could, that would've happened in the very early days when it energies like heat stopped actively causing expansion.
Before gravity could have a chance to stop/reverse the Universe's expansion, objects (like galaxies) became far enough away that their light could never reach each other (and so, neither could their gravity).
As an object leaves the observable universe of another object, they both no longer have any gravitational effect on each other. Before that, they have some minuscule but real effect.
As that effect is lost by the objects leaving each other's observable universe, the only movement energy they have relative to each other is the expansion energy the Universe was born with, and so the ratio the of effects of expansion energy to compression energy on those objects increases.
This phenomenon of objects leaving the observable universe of an object compounds:
as more objects leave one's observable universe, that observable universe experiences less gravitational compression force counteracting its natural expansion force, so objects move away from each other faster than they did before other objects left their observable universe,
which in turn causes objects to leave that observable universe faster,
which causes objects to move away from each other faster,
repeat ad infinitum
Some #Abandonedography of a house someone found in their attic
From Mr_Griff on Reddit:
Part 1 - Part 2 - 3 more photos
From Mr_Griff on Reddit:
Part 1 - Part 2 - 3 more photos