Time dilatation and expanding universe

[Rettich]

Do we see the time passing at far a way galaxies (say 12 lightyears), and thus have a very fast growing distance, more slowly?

[Strange]

Yes. The main evidence for this is "supernova light curves"; the rate at which the output from a supernova falls is related to its brightness in a very predictable way. From this we can measure the time dilation of distant objects. As expected, this macthes exactly with the red shift.

[Rettich]

Does your answer means that special relativity (in combination with general relativity?) also works for the expanding universe?

[Strange]

Yes, the whole big bang model is built aroudn general relativity.

[Rettich]

Thanks