Main Question or Discussion Point
I constantly hear about seeing the light from a galaxy, now in the 13B-year-old realm. Specifically, galaxy MACS 1149-JD was recently found to be 13.2B light years away, meaning that it is at least 13.2B years old. What I can't comprehend, is that the galaxy itself would have to be moving away from us (or us apart from one another) at at least the speed of light in order for that light to not have reached us until now. That's simply not possible, as the Hubble constant is around 70km/s, so the rate of expansion of the universe is a tiny fraction of the speed of light. In addition, when it is said the the universe is just over 13B years old, and we observe light from 13B light years away, the same problem persists. In theory we should have seen the light already. Could someone please explain?