How Does Milky Way and Andromeda Galaxies Collision Simulated | Video Work?

Imagine the Milky Way and Andromeda Galaxies are like two giant toy trains on a track, they're moving toward each other, and we want to see what happens when they crash.

Galaxies are like huge collections of stars, dust, and gas, kind of like a big, busy city in space. The Milky Way is our home galaxy, and the Andromeda Galaxy is a neighbor that’s very far away but slowly moving toward us.

Scientists use computers to do what's called simulations, it's like playing with toy trains on fast-forward. They tell the computer how big the galaxies are, how fast they're moving, and what happens when stars bump into each other. The computer then shows them a video of the whole collision, kind of like watching a slow-motion crash between two giant toy trains.

Think of it like playing a video game where you control the movement of the galaxies. Scientists press “start,” and the computer makes everything move as if it were real life. Over time, stars from both galaxies mix together, just like when two groups of kids play together during recess.

The result is a fun, colorful new galaxy that will be bigger than either one was before!