Quote:
Originally Posted by xelasnave
Your understanding seems rather sound Andrew  .
Do you know what lies beyond our observable Universe? Can there be a diameter we expect currently emcompasses all that there is?
I think Karl suggested 100 billion light years but I wonder if we can work out such a thing. if it is infinite there is no way it can be measured one would think. |
Alex, the "observable universe" and the "universe" are not the same thing. The 100 billion LY value looks like the guestimate of the size of the universe allowing for the expansion since the Big Bang.
My 13ish billion LY is a measure of the distance back in time to where the light was emitted. Those objects are now more like 45 billion LY away, which is consistent with an estimated diameter of around 93 billion LY.