Scientists usually claim that the universe is expanding exponentially. Do you know what this means? Could it be that there is the formation of new matter and space thus resulting to the expansion? Could they mean that the expansion is in the perspective of discovering new information thus claiming that there is an expansion in the knowledge that we have about space? You do know that the universe is vast and contains everything that is in space. This literally means that the universe is everything that is in existence because everything existing outside earth is said to be in space. How then, is the expansion of everything in existence understood by scientists?
Scientists explain the origin of the universe from the big bang. Subsequently, the universe has been growing ever since meaning it is expanding. This expansion means that the galaxies outside of our own are actually moving further away from us as light years go by with the furthest galaxies moving fastest away. This means that no matter what galaxy a person is located, other galaxies are moving away from them thus emanating in the expansion of the universe.
The galaxies do not move through space but move in space because space is also moving. 781
The universe has no center and thus everything is moving from everything else.
One analogy to understand how the expansion of the universe is taking place is looking at it like a loaf or raising bread dough. As the bread rises, the raisins mover further away from each other but still within the dough. In the case of the universe, there are raisins out there that we can’t see because they have moved further away from earth that their light has never reached earth. In earth, you have seen the breaking of continents which was one large piece of land a million years ago. The breaking formed several continents thus accounting for the expansion within earth itself. The universe is expanding in the same way with galaxies that were close to each other drifting further away from each other. Luckily for us in the Milky Way galaxy, things are kept under control by gravity although expansion still takes place. 764