![Galaxy group merger](https://www.astronomy.com/wp-content/uploads/sites/2/2021/09/Galaxy-group-merger.png)
Although the Milky Way’s scheduled collision with the Andromeda Galaxy in a few billion years may be the most spectacular galaxy smash-up on our horizon, it’s not the only cosmic crash astronomers have studied.
Astronomy magazine subscribers can watch these computer simulations for a taste of what gravity can fashion for free. Just make sure you’re registered with the website.