Question

How was the Big Bang different from an ordinary explosion? Where in the universe did it occur?

Answer 1

Big Bang is different from ordinary explosion that one might witness on earth . For instance, a case hydrogenof bomb explosion, whose center registers approximately 100 million degrees Celsius, moves through the air at about 300 meters per second. In contrast, cosmologists believe the Big Bang flung energy in all directions at the speed of light (300,000,000 meters per second, a million times faster than the H-bomb) and estimate that the temperature of the entire universe was 1000 trillion degrees Celsius at just a tiny fraction of a second after the explosion. The cores of the hottest stars in today's universe are much cooler than that.

There's another important quality of the Big Bang that makes it unique. While an explosion of a man-made bomb expands through air, the Big Bang did not expand through anything. That's because there was no space to expand through at the beginning of time. Rather, physicists believe the Big Bang created and stretched space itself, expanding the universe.

It is believed that the universe beganw every speck of its energy jammed into a very tiny point. This extremely dense point exploded with unimaginable force, creating matter and propelling it outward to make the billions of galaxies of our vast universe.

13.7 billion years ago, our universe emerged from a singularity — a point of infinite density and gravity — and that before this event, space and time  didn'te (which means Big bang took place at no place and no time.)