An article on scientists [theoretically] creating a mini universe was just posted on the front page: http://www.qj.net/-Come-Let-Us-Play-...58387#comments
I don't know a whole lot about what this involves or how stable it could be, but what do you make of this? It could further our understanding of the universe a great deal, but it is it going too far? Too dangerous?
If you think about it our universe could have been created in another universe by someone/thing else. There may even still be a 'wormhole' leading back to them.
I find it amazing how far our technology has progressed and can't wait to find out (if they do actually attempt this in the future) if they succeed of not.