Is expansion of universe faster than the speed of light?
Is the universe expanding more than the speed of light? If yes then doesn't it break the cosmic limit?
We all knows that universe is expanding. Suppose that there are two different galaxies travelling in the opposite direction from each other at the speed of light. Can one will be able to see the other one ever? Scientists say that the universe is expanding, and all the galaxies are moving away from one another. How can they be sure that this is due to expansion and not shrinking of all the matter everywhere in the same ratio? Can the speed of light be increased? Why is the speed of light so small relative to the size of the universe? How does the Theory of relativity explain the expansion of the universe? Will the speed of light ever change? Why is the speed of light not infinite? Could the speed of light be increasing/decreasing? What if the universe isn't expanding but matter is all shrinking? Does the universe need energy to expand? Since the Big Bang, has the amount of mass in the universe been increasing? Is the amount of energy in the universe decreasing? If the universe is expanding, why is the Earth moving towards the Sun? Is there anything bigger than the universe? Since light doesn't have rest mass but has energy, so if huge amount of light is accumulated at a point in space, will it warp space-time? Why isn't the cosmic acceleration limit equal to the speed of light divided by the planck time? How vast is the universe? The Universe have a center, and is on expansion. Wouldn't be more precise to say The Universe could be infinite, but at a moment "x" he have an end? If a photon travels at the speed of light and time dilation at the speed of light is infinite, does this mean that, from the photon's perspective, it takes no time at all to cross the entire universe? What will happen if the universe stopped expanding? Why does God has gone to this length to create the whole universe and a planet only for humans when the end is so inevitable? Where does the energy from photons affected by the expansion of the universe go? Do gravitational waves travel faster than the speed of light? Does light travel indefinitely in space? Why does light travel so fast in space? How is space expanding? Does light travel through space forever? Our universe is a sphere, but what direction are we expanding in? Are all galaxies moving away from us or are they moving in some specific direction? Has the speed of light changed? Can we increase the speed of light in a vacuum? Is it possible to increase or decrease the speed of light?