can the center of universe be calculated from the directions the giant clusters are expanding to??

Answer 1

The big bang not only created all matter in the universe, but space itself. It is space that is expanding, and the galaxies are just moving along with it. Resultingly, the galaxies are all moving away from each other, but not from any particular point in space. There is no direction to the center of the universe in other words.

Answer 2

If the universe is infinite (in 3-D space), then there is no centre (or, the centre is everywhere).

As an analogy, take the line of integers {...-3, -2, -1, 0, 1, 2, 3...}. Where is the centre?

A centre is a point from which there is an equal quantity on each side. It is easier to illustrate in 1-D -- that is why I use a line -- but the principle remains the same in 3-D except that you have an infinity of directions.

We tend to think that the centre is at 0. However, the centre could be at +100 or at -5000. From any point, you can find the same number of numbers on both sides. Demonstration? just take all the numbers on the line and add 5000 to each one. The old -5000 is now 0 and you have not run out of numbers on either side.

Therefore, the point -5000 is just as valid as a centre as the 0 was.

An infinite universe also solves other problems: the universe can expand without needing to expand into anything.

Stretching the same analogy:
multiply each integer by 10 (we now have ...-30, -20, -10, 0, 10, 20, 30...). We have made the distance between each number 10 times what it was before. Did we make the line 10 times longer than before? If yes, then this means that we have created new numbers.

Did we create new numbers? no. Whatever the number N that was in the original line, we have "created" the number 10*N. Since 10*N is an integer, then it was also part of the original line.

We have expanded the line by a factor of 10 without having to expand it into anything new.

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Another viewpoint:

In the 4-D space-time representation, there appears to be a centre: 14 billion years ago. This is the point that was calculated from the "direction" the giant clusters are expanding into.

However, any point located "14 billion years ago" is not part of the present (or future) universe.

Answer 3

Short answer is no. Here is an analogy that might help.

Imagine that you suddenly appear in a huge poorly lit room where you can't see the walls. 200 tennis balls are dropped all around you moving in different directions away from you. You can't determine where the center of the room by calculating the directions of the tennis balls.

To find a center, you need an edge or boundary. Yes the giant clusters are moving in different directions but all we know is that they are moving away from us and unfortunately, it gets more complicated because we are also moving away from them.

Answer 4

No. The edges of the universe aren't expanding at a constant rate, so even if they could somehow calculate the centre, it would change instantly

Answer 5

NOT that easy. The centre of Universe is yet remain unsolved.