Our home planet is the Earth, it's located in our Solar System together with seven other planets. If we zoom out a bit, you'll see the Milky Way - our home galaxy. If we zoom out even further, we'll see an infinite number of other galaxies.

But what if two galaxies collide? Would there be another Big Bang or the end of it all or maybe two galaxies would merge into each other? Scientists claim the collision of parallel worlds has already happened. Here's the proof...

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