No. Dark Energy acceleration is not weaker gravity, it's antigravity. Have a look at https://www.physicsforums.com/showthread.php?t=415607".Would the energy dillution further weaken the gravitational bonds between galaxies in addition to the expansion itself, giving the appearence of dark energy acceleration?
Nope, doesn't work this way. The energy emitted as light from a star stems directly from the nuclear reaction at its core. Except for brown dwarfs, stars are stable objects which do not collapse under gravity for the majority of their life cycle. The gravity of a star is entirely separate.Sci1 said:When matter is transformed into light energy within a star, the gravity associated with the matter is now associated with the light's energy.
Nope.Sci1 said:As space expands, the redshift is dilluting the light's energy and reducing the gravity associated with that energy. Would the energy dillution further weaken the gravitational bonds between galaxies in addition to the expansion itself, giving the appearence of dark energy acceleration?
Ich said:No. Dark Energy acceleration is not weaker gravity, it's antigravity. Have a look at https://www.physicsforums.com/showthread.php?t=415607".
Chalnoth said:Nope, doesn't work this way. The energy emitted as light from a star stems directly from the nuclear reaction at its core. Except for brown dwarfs, stars are stable objects which do not collapse under gravity for the majority of their life cycle. The gravity of a star is entirely separate.
Red shift is a phenomenon in which the light emitted by an object appears to be shifted towards longer, redder wavelengths. This is caused by the expansion of the universe, which stretches the wavelengths of light as it travels through space.
The red shift of light from distant objects is evidence of the expansion of the universe. As space expands, it stretches the wavelengths of light, causing them to shift towards the red end of the spectrum. This is known as cosmological red shift.
Gravity plays a crucial role in the expansion of the universe. It is the force that pulls matter together, counteracting the expansion caused by dark energy. Without the gravitational pull of matter, the expansion of the universe would be much faster.
Dark energy is a mysterious force that is thought to be responsible for the accelerating expansion of the universe. It is believed to make up about 70% of the total energy in the universe, but its exact nature and origin are still unknown.
The combination of red shift, gravity, and dark energy will determine the fate of the universe. If dark energy continues to dominate, the expansion of the universe will accelerate, eventually leading to a "big rip" in which everything in the universe is torn apart. If gravity wins, the expansion will slow down and eventually reverse, causing a "big crunch." The current evidence suggests that dark energy will continue to dominate, resulting in a universe that expands forever.