Think about this... If you travel and travel trillions of light years away from Earth, do you think there is an end to Space? Does Space go in every direction for infinity, like up, down, left, right? It is so strange to actually think about this question. Also, if it does go forever, why hasn't there been any contact with anything other than us here on Earth? Or do we come in contact with things from beyond Earth everyday and we just don't know it. You know what is cool also, human beings have been on earth for millions of years, and just in the past hundred have we been to outer space. Pretty Crazy if you ask me...