The problem with determining the exact age of the universe is that we don't know where it ends and begins. So far all we've got to go on is that faint light/radiation from 13-15 billion years ago. It could be even longer, but we just don't have the technology to track it.
That said, I remember an episode of Dr. Michio Kaku's Sci-Fi Science show, where he talked about being able to create a new universe and creating a wormhole that could stay open long enough for you to go there. I think he said you had to heat up some matter about a trillion trillion times, then find a way to stabilize the wormhole which connects our universe with the new one long enough to send some data through that could reconstruct another "you" there (he said you couldn't physically go there yourself if I recall).
The interesting part was that when this new universe is created this way, it begins to expand massively, but at the same time goes into its own dimension separate from ours. It's sort of like WoW's phasing system, where multiple layers of the same map can be used in one area, and they're all independent of each other. Which sort of loosely describes the multiverse, aka parallel universe theory pretty well...
Another interesting question for me is, if the universe is 13-15 billion years old, and the Earth is only about 4.5 billion, were there other species throughout the universe that existed before the Earth did? Like what about a species whose star system existed a couple hundred million years, or even a few hundred thousand years, before ours? Assuming they didn't wipe themselves out, what kind of technology do they have? If you see how fast humanity's technology is progressing (for better or worse), I wonder what an alien species that's been around 200,000 years before ours is like and what they're doing...
