Ah, space, the final frontier. It's vast beauty has no comparison, but also no means of viewing it all.
It would presumably take years, many many years, to build a rocket with enough fuel capacity to travel to even 1/4 the distance of the universe, and even then, the many other necessities such as water, food, air, and warmth would have went dry far before that point. Plus there's also life itself: we would need someone who is immortal to even hope to accomplish that task, but as we all know, that's also well past impossible.
It's quite the puzzling aspect, but it is one we have longed to taste for our own. It is quite ironic how we aspire to fly high, but a lack of resources and life keeps us rooted to our own planet.
But we can always look to the future, ya'know? It may be inaccessible now, but maybe one day the generations to come will be able to do what we hadn't been able to in our time.