How can we calculate the expanding rate of the universe if it has no center?
If the universe is expanding then is it possible to calculate the rate at which it is expanding?
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? Is universe expanding because there is potential energy that transforms into kinetic energy all the time? Does the universe need energy to expand? 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? How did Edwin Hubble know the Universe was expanding when we can only detect a small sector of the Universe? Since the Big Bang, has the amount of mass in the universe been increasing? Is the amount of energy in the universe decreasing? What will happen if the universe stopped expanding? Is the expansion of the Internet comparable to the expansion of the universe? If the universe starts shrinking, would the time go backwards or would it just be the same? How does the Theory of relativity explain the expansion of the universe? Is it the dark matter that is helping universe to expand? Is the expansion of the internet much like the expansion of the universe? Atomic structure, the solar system, the Milky Way are all planar, therefore the universe is planar. Anything in motion has one predominant direction and observations indicate universe to be expanding. Is this expansion more flat in nature? Could the acceleration of the expansion of the Universe come from the fact that density is what is hindering creation of space? Why is dark energy the leading theory for why the universe is expanding? Why does the entropy keep growing when the universe is shrinking? Why is space expanding? If the universe is expanding, why is the Earth moving towards the Sun? 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? How can we mathematically prove that in a collapsing universe the entropy still increases? Is universe energy infinite? Does space expands faster than speed of light? How vast is the universe? Where does the energy from photons affected by the expansion of the universe go? 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 universe expands without limit is there infinite potential energy that transforms into kinetic energy (of expansion) all the time? Is there an end to the universe, and if not, is the universe infinite? Is the Universe infinite or is there an end to the Universe? If you were at the expanding edge of the universe, and observing the expansion, what would you see? Does dark matter increase as the universe expand?