How do we explain Dark Energy and Dark Matter which accounts for 96-98% of the Energy of the Universe?
It means that a lot of Energy is not visible by our known detection methods. The fabric of Cosmos is the Vacuum of Space. It itself has energy.
Then in Space, Light cannot travel for ever. Its momentum and energy would get dissipated as it crosses ocean of Space with Matter and other kinds of force like Gravity. So a lot of visible Universe remains Invisible. Our Scales have not reached that level of distances yet.
What about Dark Matter? Light cannot escape Dark Matter. So does the speed of light remain the same while falling? After the horizon event, it will accelerate - if we assume photon to be an infinitely small mass and black hole to be infinitely big mass, and still acceleration would happen. So black holes hold unaccountable mass as they cannot be seen easily and they also absorb Light.
Do things escape from Black holes? There is this opposite view called White Hole and then there is a polar region where it is seen Radiation escaping. It looks like the matter and light falling into black hold would in-cinder the matter insider the mass - with accelerated photons falling and hitting matter, and the falling matter also hitting. This would lead to formation of polarized plasma which would start making vortex at the Polar regions. This vortex would have higher speed than ordinary light and escape.
So what we can say the speed of Light is not constant. And the Universe visible is a small compared to real Universe.
