(May 18, 2022 at 12:20 pm)Jehanne Wrote: The observable Universe is 14 billion years old but its diameter is 93 billion light years. Go figure:
Wikipedia -- Observable Universe
The point here is that the furthest galaxies we can see are about 13 billion light years away. So the light from them started 13 billion years ago.
But, during the time that the light was moving towards us, the galaxy was moving farther away from us. So that same galaxy *now* is about 47 billion light years away (remember that the expansion rate of space can be faster than light: it is motion through space that us limited to light speed).
