Universe is a three-dimensional dimension that expands endlessly. It is where this wiki is located. Everything that existed (yes even crap) is located in the Universe. It's so big. I mean really big. So big, much scare, wow. That's how big universe is. The universe was created when this so-called Big Bang exploded. The Big Bang contains everything that is existing today (yes even crap). When it exploded the stuff the Big Bang contains were scattered everywhere.