The "how" is an open question, although the current theory is that the present incarnation of the universe was started at the "big bang". We have no idea if there was anything "before" the big bang, or even if the idea of "before" makes any sense.
The "when" is, about 14.5 billion years ago. Again, the details are a little sketchy; we weren't around to observe the event.
God spoke the universe into existence. See the first chapter of Genesis.
God spoke into existence the universe
Rene Descartes philosophy of logic and rationality led him to come to the conclusion that God must exist. Without his existence, there is not explanation for the universe.
Michael was created as a pure spirit, an angel, by God, long before the universe existed.
According to the best scientific theories, this is both unanswerable and meaningless, as time is considered to have come into existence simultaneously with the universe. There was no "before" the universe. However, even if there was, there's no way we could ever know anything about it.
when will earth be wiped out of existence? We ARE NOT the only existence in the universe.
The Indians believe the world was not created. They believe that the universe has always been in existence and will never come to an end.
Helium is has been in existence since the beginning of the universe.
An acosmist is someone who denies the existence of the universe, or of a universe distinct from God as the creator.
The existence of matter is not infinite, as there is a limit to the amount of matter in the universe.
The universe
The name Universe refers to all that there is in existence, therefore nothing can be outside it.