The Big Bang is not thought to have occurred at a specific location within the universe as we understand it today. Rather, the Big Bang is the prevailing scientific theory that describes the early moments of the universe's existence and its subsequent expansion.
According to the Big Bang theory, the universe began as an extremely hot and dense singularity, a point of infinite density and temperature. From this singularity, the universe rapidly expanded and continues to expand to this day. As the universe expanded, matter and energy spread out, cooled down, and eventually formed galaxies, stars, and other cosmic structures.
The concept of the Big Bang does not involve an explosion happening at a particular location within space. Instead, it suggests that space itself, along with all matter and energy within it, was compressed into an incredibly small, hot, and dense state. The subsequent expansion of the universe is described by the theory, but the exact nature of what may have existed "before" or "outside" the singularity remains a subject of ongoing scientific investigation.
It's important to note that the Big Bang does not imply an explosion within space, but rather the expansion of space itself. The question of where the singularity originated or what may have existed prior to the Big Bang is still an active area of scientific inquiry, and our current understanding is limited to what can be inferred from observational evidence and theoretical models.