Measurements of Doppler shift indicate that nearly all of the galaxies outside of our own cluster are moving away from us.
No. It is space itself that is expanding.
The question does not make sense.
space, or the universe, has no defined shape it is constantly expanding, as everything gets farther and farther apart When it comes to the universe the size and shape are undefinable, unless you get into really hardcore theoretical physics that make sense only to Stephen hawking
Yes, if it didn't it couldn't function.
Some things in the universe that don't make sense include dark matter, black holes, and the concept of time dilation in relation to the theory of relativity.
The "balloon" is just a rough analogy; the balloon surface is 2-dimensional, our Universe has 3 dimensions (3 spacial dimensions). In the balloon, there is a curvature towards a third dimension. It is not clear whether such additional dimensions (beyond the third dimension) make any physical sense in our Universe.
Question does not make any sense.
It would make sense that the capital should be in the center. But since the universe has no edge, it has no center, which means that no matter where you are in the universe, the view is the same. So the most central location in the universe is the entire universe.
The Universe! Initially everything was crammed into an infinitesimally small point but since the Big Bang all the matter and energy that make up our Universe has been expanding outwards.
"Cosmic" means "related to the Universe"; so this question doesn't really make much sense.
If we were to assume that the universe was created in a single place and time ( the big bang) then it makes sense. Because everything was concentrated near the central point and is exploding outwards like fireworks.
Edwin Hubble's discovery of red shift demonstrated that galaxies are moving away from each other, providing evidence for the expanding universe. This discovery supported the Big Bang theory and fundamentally changed our understanding of the universe's structure and evolution.