What Happens When Two Galaxies Collide? (The Universe’s Most Epic Crash Explained)

Added: 2026-05-26

[00:00:00]What happens if two entire galaxies slam into each other?

[00:00:10]Imagine trillions of stars pulled into a cosmic dance by gravity.

[00:00:17]But here's the twist. Almost no stars actually collide.

[00:00:24]Instead, gas clouds smash together, igniting waves of new star birth.

[00:00:32]At the center, supermassive black holes begin their deadly spiral.

[00:00:42]Sending powerful ripples across the fabric of space itself.

[00:00:49]And this isn't just [music] theory.

[00:00:51]It's our future.

[00:00:58]In billions years, our night sky will look completely different.

[00:01:04]The result?

[00:01:06]A giant new galaxy born from chaos.

[00:01:12]Follow Fact Spark for more mind-blowing space facts.