Space happened in Big Bang
When most people hear “Big Bang,” they imagine a giant explosion that happened somewhere in space — like a bomb going off in a dark empty universe.
But that picture is completely misleading.
The Big Bang wasn’t an explosion in space.
It was the moment when space itself began expanding.
There was no center.
No edge.
No empty void surrounding it.
The universe didn’t expand into anything — it simply expanded everywhere at once.
A good way to picture this is with the surface of a balloon.
When you inflate it, every point on the surface moves away from every other point. From any location, it looks like everything else is receding.
But there’s no special “center” on the surface itself.
Our universe behaves the same way.
As space expands, galaxies move apart not because they are flying through space like debris from an explosion, but because the space between them is stretching.
That’s why every galaxy we observe appears to be moving away from us.
If you lived in a distant galaxy billions of light-years away, you would see the exact same thing: every other galaxy moving away from you.
Which leads to a strange but beautiful conclusion:
Every point in the universe can be considered the origin of the expansion.
Including the place where you’re standing right now.
So the Big Bang didn’t happen at a particular location.
It happened everywhere.
About 13.8 billion years ago, the universe began expanding — and that expansion continues today.
The universe didn’t begin somewhere.
It began everywhen.#microlearning #stem #stemtok #BIGBANG
Many people find it challenging to grasp the concept that the Big Bang was not a traditional explosion but rather the expansion of space itself. When I first learned about this, it changed my entire perspective on how the universe works. Instead of imagining debris flying outward from a center point, I picture the universe more like the surface of a balloon inflating. A useful way to visualize this is by imagining each galaxy as a dot on a balloon. As the balloon inflates, the dots move away from each other, and no dot is at the center — every point perceives itself as the center. This analogy helps explain why every galaxy we observe appears to be moving away from us, and why an observer in any distant galaxy would see the same phenomenon. It’s also fascinating to think about how this expansion stretches space itself, rather than galaxies moving through space like particles from an explosion. This concept helps explain observations such as redshift, where light from distant galaxies shifts toward longer wavelengths due to space stretching. Reflecting on this makes me appreciate the complexity and beauty of the cosmos. The Big Bang’s expansion happening everywhere simultaneously means the universe has no edges or boundaries, fundamentally changing how we define origin and place in the universe. It’s a humbling and awe-inspiring idea that the very spot where you are standing right now was part of this cosmic beginning about 13.8 billion years ago, and that space continues to expand even today.
what caused that? lol