Does the expanding universe contradict relativity?

[rede96]

I know this is probably a stupid question but I was wondering, with two frames that are moving wrt to each other, it is valid to say that ‘A’ is moving from ‘B’ OR that ‘B’ is moving from ‘A’

However with the expanding universe, I can say that all other frames are moving away from me, but I can’t say that I moving away from all other frames.

So is that a contradiction of SR?

 

[tom.stoer]

In our expanding universe you can fix any reference frame S and determine the motion of other frames X, X', X'', ... You will always find that these frames move radially outwards w.r.t. S. Now chosing a different frame T (with its origin at a different location) and determining the motion of other frames Y, Y', Y'', ... you will again find that these frames are moving radially outwards, therefore there is no difference between S and T, no preferred frame which located "in the center".

 

[Drakkith]

I know this is probably a stupid question but I was wondering, with two frames that are moving wrt to each other, it is valid to say that ‘A’ is moving from ‘B’ OR that ‘B’ is moving from ‘A’

However with the expanding universe, I can say that all other frames are moving away from me, but I can’t say that I moving away from all other frames.

So is that a contradiction of SR?

Whichever frame you choose, you will see that ALL other points in space are moving away from you.

 

[Passionflower]

I know this is probably a stupid question but I was wondering, with two frames that are moving wrt to each other, it is valid to say that ‘A’ is moving from ‘B’ OR that ‘B’ is moving from ‘A’

However with the expanding universe, I can say that all other frames are moving away from me, but I can’t say that I moving away from all other frames.

So is that a contradiction of SR?

A dynamic universe is indeed not compatible with SR. But the realm of SR is flat spacetime not curved spacetimes.