The artist’s drawing below seems to suggest it was. Most people, though, probably imagine it as a huge explosion at a point in space from which everything was flung outward and is still going. That’s why they call it the “Big Bang,” right? (Not everyone does, see article here; and to find out where the term came from, go here.)
So, if there was an explosion, where did it happen, and more to the point, where are we in relation to the center of the universe from where everything is moving outward?
You’re not going to like this, but standard cosmological models “do not describe the Big Bang as an explosion that happened at a particular point.” Instead, “the best evidence is that the Big Bang happened … everywhere at once.” More like a fuel-air bomb, or napalm drop, than a 500-pounder. Think of a natural gas explosion in a house. (You didn’t want to be in that house.)
So, according to the cosmologists, there was no “anywhere,” until the Big Bang created everywhere. All at once. See article here.
This seems to rule out a cannon-shot creation of the universe. But we’ve already known that for a very long time, simply because there are stars in every direction we look, which is to say all directions. So the picture below is just a diagram of a slice of space, not a map of the whole of space. And, it seems, we’re not here because God was playing with firecrackers. She was sprinkling pixie dust, or blowing bubbles (see the same artist’s depictione of God creating the universe, right).
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The artist conception is a 3d bell curve. It takes into account Einstein’s theory that space is curved. Travel far enough you come back to where you began.
The early universe is a totally alien place. We could not exist there. There is only energy. There is matter or if matter develops it is just for moments. Like electric tubes you have two states that can exist but only one can exist in the tube at one time. The universe had to cool down before the building blocks of matter could exist and it is a long long time before there are hydrogen atoms that are needed to be what stars are made of.
At the point of hydrogen atoms the tube has cooled down and the universe is in a different state.
This suggests there could be a further state the universe could enter into with further cooling or dark matter and dark energy being a driving force.