Originally Posted By: redewenur
BTW, do you still think we have no way of knowing if the image of a distant galaxy is blurred or not, despite the HUDF images?

Those images are just as affected by any free matter in outer space as are those of our personal telescopes.

Originally Posted By: redewenur
Surely, if blurring has occurred during the several billion lt yr journey, then it must be of an extremely small order. don't you agree?

How can a person possibly know the difference between the amount of blurring affecting a close up photograph and that of a long distance one unless the camera has been located there?

Being of the opinion that there have been no close up photographs of those distant galaxies I have no way of evaluating the extent of any blurring.