As the thread title says, if the universe is finite will i see my light again. I understand that parts of space-time are expanding faster than c, therefore even in a finite yet expanding universe the light will never reach the "boundry". By boundry i mean more of a turning point where the curvature of space takes my Photon on a long trip eventually leading to its point of origion. I'm picturing 2 ants on a baloon standing next to each other. The first ant gets in his little space ship and zips off in a straight line, well a line he percieves to be straight. heading into the distance until his friend can't see him anymore. from the perspective of both ants everything in every direction is perfectly flat. But eventually our second ant turns around to find his friend rapidly aproaching from the other direction. Our first ant followed, in a straight line, the natural curvature of the baloon and ended up right where he started. I'm trying to read a book thats a bit out of my league and im at a part of the book that talks about spatial curvature. I tend to think better in pictures so i want to make sure my picture is right before i move on to trying to teach myself the math.