Re:If the universe is 13.8B years old, how can we see 46B li...
by shkkmo on Saturday December 07, 2019 @10:01AM
(#21730586)
The limiting factors are the speed of light and the rate of expansion of the universe (same as the limiting factors of the observable universe).
"reach" is possibly the wrong phrase, since it is the corollary of the "observable universe", one might call it the "observing universe", which is the slice of the universe that light from our present day can ever reach due to the accelerating expansion of the universe and the limitation of the speed of light.
"reach" is possibly the wrong phrase, since it is the corollary of the "observable universe", one might call it the "observing universe", which is the slice of the universe that light from our present day can ever reach due to the accelerating expansion of the universe and the limitation of the speed of light.