The recent pictures from the Hubble Deep Space Field got me wondering.
They are from a time when the Universe was only 700 million years old, some 14 billion years ago. What I don't understand is this.
At 700 mill years old, the maximum possible distance between the observed Galaxies and Earth is 1.4 bill LY. So if the Universe wasn't expanding, then the light would take 1.4 bill years to get here.
The Universe is expanding of course, so, since the light has to travel further, then it takes longer to get here. 10 times as long. Now if we were at one "edge" of the Universe and the Galaxies at the other, moving away from each other either side of the "central" point, then both "edges" would need to moving at 45% C to "create" the required distance in the time available.
That just doesn't seem right, so where am I going wrong?