From the February 2013 issue

When galaxies collide

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. Watch these computer simulations for a taste of what gravity can fashion.
By | Published: February 26, 2013 | Last updated on May 18, 2023
Galaxy group merger

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.