Changes

With the current level of technology that humans have to explore space we won't be able to answer this question definitively for a long time. Though we won't be able to test any hypotheses that are created to answer this question both Pacman and Everwill are wrong that the question is semantic based because with the technology we do have at our disposal we can prove that the universe is expanding, leaving the question "expanding into what?" The answer to the question might come with a breakthrough into the nature of dark matter and dark energy or maybe the only way to find out is to break space-time. Its a long way off. --blutengel

With the current level of technology that humans have to explore space we won't be able to answer this question definitively for a long time. Though we won't be able to test any hypotheses that are created to answer this question both Pacman and Everwill are wrong that the question is semantic based because with the technology we do have at our disposal we can prove that the universe is expanding, leaving the question "expanding into what?" The answer to the question might come with a breakthrough into the nature of dark matter and dark energy or maybe the only way to find out is to break space-time. Its a long way off. --blutengel