Lol! Well, according to some models of the universe, if you traveled far enough into deep space you would do a loop and basically return to where you started. This is assuming there is enough matter in the universe to cause it to curl up on itself: a ‘Closed Universe’, as opposed to open or flat.
Einstein once said that an Earthling observer, if his eyes were like telescopes, could see the farthest objects, and if the observer had ENOUGH time, eventually he would see...
The back of his head!