Does ''expanding space'' mean formation of new space?

[tarekatpf]

This is what I understand. I can be wrong though. Please let me my conceptions are wrong.

If by ''space'', you mean ''distance between two objects'' then the answer should be ''yes.'' Because since the distance between two distant objects in the universe is actually increasing, it should mean you're making the objects more distant, and also making new space.

Well, is that so?

 

[timmdeeg]

"expanding space" should better be interpreted as a picture, see here:

https://www.physicsforums.com/showthread.php?t=659192

 

[bapowell]

If by ''space'', you mean ''distance between two objects'' then the answer should be ''yes.'' Because since the distance between two distant objects in the universe is actually increasing, it should mean you're making the objects more distant, and also making new space.

Well, is that so?

Yes, trivially so, based on your starting identification: space = distance between two objects.

 

[tarekatpf]

"expanding space" should better be interpreted as a picture, see here:

https://www.physicsforums.com/showthread.php?t=659192

Thank you very much.

 

[sardar]

I can confirm that your understanding is partially correct. The expansion of space does result in the formation of new space, but it is more complex than simply creating distance between two objects.

The concept of expanding space is based on the theory of general relativity, which explains how gravity affects the curvature of space-time. It suggests that the universe is constantly expanding, with galaxies and other celestial bodies moving away from each other due to the expansion of space. This means that the space between objects is increasing, but it is not just the distance between them that is expanding.

In fact, the expansion of space is happening everywhere, even within our own bodies and within the atoms that make up our bodies. This is because the fabric of space-time itself is expanding, causing the distance between all objects to increase. This expansion is not limited to just the observable universe, but it is happening on a larger scale that we may never fully understand.

Therefore, it is not accurate to say that expanding space is simply creating new distance between objects. It is a fundamental property of our universe that is constantly shaping and evolving the fabric of space-time itself. I hope this helps clarify your understanding.