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Thanks Ron,
Interesting article. However this blob of material is not 12. 5 billion l/ys distant. The photons from it have taken 12.5 billion years to reach Earth, however during that time, due to the expansion of space, both the Earth and this blob have moved apart considerably.
The recessional velocity at this distance is about 270,000 km/sec, approaching the speed of light thus the distance to this object would be billions of l/yrs further.
Another most interesting aside, assuming a Hubble Constant of 70km/s/Mpc, is that the separation between this blob and our host Galaxy, when the photons currently reaching us left the object, would have been considerably less than 12.5 billion l/yrs.
Yet another thing to ponder is that this blob, which was a blob 12.5 billion years ago has probably evolved into a quite mature galaxy by now.
If thinking about all of this doesn't give you all a headache then nothing will.
Regards
Trevor
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