When does "starting in the center" mean anything besides "starting in the center"?
The earth is not the center of the galaxy
The Earth is where the astronomers are. If they are looking outward (away from the center) then the further they look, the younger the stars.
He didn't say that. He said earth is nearer to the center of a spiral arm.
The Earth is where the astronomers are. If they are looking outward (away from the center) then the further they look, the younger the stars.