How fast is universe expanding compared to light speed?
How fast do we believe the universe 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 the expansion of the internet much like the expansion of the universe? What will happen if the universe stopped expanding? 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? 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? Does the universe need energy to expand? Is the universe 13.8 thousand million years old or 13.8 million million years? Is the expansion of the Internet comparable to the expansion of the universe? How did Edwin Hubble know the Universe was expanding when we can only detect a small sector of the Universe? Is there anything bigger than the universe? Is it the Big Ongoing, not the Big Bang? Could the acceleration of the expansion of the Universe come from the fact that density is what is hindering creation of space? 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? Is the big bang even possible? Can another Big Bang happen more than once in our Universe? Is the Big Bang actually possible, or not? How much of the universe has been mapped out? Can we see beyond the event horizon in the universe? What is the size of the universe? Is it possible to create a new universe? Why is space expanding? Can we see the Big Bang? Are we still in the process of the Big Bang. What if only we can experience time at this scale? How do we estimate the time since the big bang? Will the universe end in a big freeze? If you were at the expanding edge of the universe, and observing the expansion, what would you see? Is there anything beyond the universe? Will the universe end with the Big Freeze? At the end of the universe, where does everything go? What is at the end of the universe?