Andromeda colliding with Milky Way

Andromeda colliding with Milky Way

In the far, far future, humans (assuming humans still exist, of course) will see Andromeda galaxy much more clearly, and in a more amazing way – because it is on a direct collision course with the Milky Way. It is expected the Andromeda galaxy to directly collide with the Milky Way in about 4 billion years. Here’s how the Earth’s sky would look shortly before they start to collide.

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