Starship Asterisk*

Hello ! I don't speak about the quasar's own movement. I neglect it. I speak about the effect of the Universe's expansion. Please, have a look at the observable Universe article in Wikipedia : For example, the cosmic microwave background radiation that we see right now was emitted about 13.7 billion...

Hello. The comment states that the quasar is 12.7 billion light years away. I believe that this statement is untrue. This quasar is 12.7 billion years old. So the light crossed 12.7 billion light years. In my opinion, this doesn't mean that the quasar is 12.7 billion light years away. I believe that...