What Really Is Beyond Our Own Galaxy?

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Have you ever wondered what is really beyond our own galaxy? Surely there must be some sort of life-source out there, somewhere. Maybe one day we'll find out? Maybe we'll never know. I personally believe that there is something out there; maybe this something are similar to us, living on a planet the same as our Earth? Or maybe this something is totally different to us, and not similar in anyway what-so-ever. So, here's the discussion about what's beyond our galaxy. I'm looking forward to some interesting replies!