Can light increase its speed within a vacuum?

Adrian Moir

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The reason why creationists do not believe in a big bang is because light cannot accelerate in a vacuum.
And what this means is that all matter was never compressed into a singularity only to explode in a huge burst of energy causing rapid expansion across the universe, not only because the light escaping from the explosion cannot accelerate.

But also because a singularity in space cannot be achieved as the amount of pressure that is exerting outwardly is thousands of times greater than the pressure forcing the matter into an infinitesimal region, just as a glass of water cannot be compressed into a droplet. So the probability of a singularity forming within an infinitesimal region that exploded rapidly across the universe is nil.

Resources:

Does light change in a vacuum?
Light, no matter how high-or-low in energy, always moves at the speed of light, so long as it's traveling through the vacuum of empty space. Nothing you do to your own motion or to the light's motion will change that speed.

Why is the speed of light in a vacuum constant?
The special principle of relativity: physical laws should have the same form in all inertial systems (systems at constant speed). The speed of light (in a vacuum) is constant for every observer, independent of the movement of the light's sources.
 
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