Josh SchwartzHostIn the 20th century, we've shed the light on this mystery, all thanks to this man, Edwin Hubble.
One day on Mount Wilson in Southern California, he aimed his telescope at the sky and found out that these random clouds of gas flying everywhere are actually other galaxies, and there are a lot of them.
And also, he learned something else, something that changed the world forever.
They're moving.
"So what?" you may ask.
Well, it meant one very important thing: the universe is expanding.
And if it's expanding, then it probably had a beginning somewhere, right? Now all we have to do is run time backwards and see where the beginning was.
Nothing has ever been anywhere because neither when nor where existed.
Do you get it? But actually, no.
There was one thing.
It was the so-called cosmic singularity, a state of our universe in which it was incredibly small, dense, and very hot.
Imagine if our universe was compressed into a small ball.
The pressure and temperature inside would be enormous.
At some point, it became impossible to withstand them, and here comes the Big Bang.
It was an outburst of energy and matter that created everything we see now.
In the 20th century, we've shed the light on this mystery, all thanks to this man, Edwin Hubble.
One day on Mount Wilson in Southern California, he aimed his telescope at the sky and found out that these random clouds of gas flying everywhere are actually other galaxies, and there are a lot of them.
And also, he learned something else, something that changed the world forever.
They're moving.
"So what?" you may ask.
Well, it meant one very important thing: the universe is expanding.
And if it's expanding, then it probably had a beginning somewhere, right? Now all we have to do is run time backwards and see where the beginning was.
Nothing has ever been anywhere because neither when nor where existed.
Do you get it? But actually, no.
There was one thing.
It was the so-called cosmic singularity, a state of our universe in which it was incredibly small, dense, and very hot.
Imagine if our universe was compressed into a small ball.
The pressure and temperature inside would be enormous.
At some point, it became impossible to withstand them, and here comes the Big Bang.
It was an outburst of energy and matter that created everything we see now.
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