[hchasestevens]

Hm - but older from what perspective? Since light travels at c, aren't all journeys light takes instantaneous from the point of the photon? My understanding as well being that all known natural processes (like beta decay) are time-dilated at relativistic speeds.

Also, how would this jibe with the parallax-based observations mentioned in the article?

[pault]

But light only travels at c in a vacuum, if I remember correctly. So the journey isn't instantaneous, but still very very short. :)