Well, it’s fueled by stuff like this:
See? 195,000 years. Which gets us as far as maybe, oh, somewhere on the other side of the galaxy from where we are, since the center of the Milky Way is approximately 25,000 light years from us. The closest planet that is a possibly Earth-like planet is about 20.5 light-years away , so I feel a little better about the search for life out there in the universe, but I’m still navel-gazing.