Space. The final frontier, as the saying goes. A never ending void of nothingness speckled throughout with planets and stars unfathomably larger than our own. Yet these same astral bodies, which dwarf our own, are mere pin pricks on a cork-board in relation to the size of the universe, and even that may not be an adequate comparison. I am not saying it is wise to fear the unknown because otherwise man would never push his limits, but so little is known about the universe, and as a result, it is perhaps the most terrifying thing known to man. Just think about it, a vast ever expanding emptiness of which the entire human race has only existed for less than a second if the life of the universe was scaled down into a single day. It is difficult to think that no matter what you accomplish in your lifetime it will be meaningless in the grand scheme of the universe. This concept may be a difficult one to accept, but if any good can come from this notion of irrelevance, it is that as individuals on our tiny planet living our short lives, we are free to live as we see fit. In a universe full of giant cosmic bodies that exist for eons, we have the distinct advantage of being able to live ever day as if it was our last. This appreciation for the little things, like life itself, is what make humans so distinct in the universe in which we live.

http://spaceistoimagination.blogspot.com/2012/10/star-wars.html