Distances between stars in a galaxy are so great that it will be near impossible for most stars or planets to collide. Though a few are likely to. We would almost surely still have our Sol And solar system as it has always been, just probably much farther from the center of our new galaxy than we were in our old. And this would apply to almost the entire galaxy. It would not be nearly as destructive as you probably imagine.
Edit to say that the most destructive part of the collision would likely be the force of gravity launching some entire stars, planets, and solar systems out of orbit entirely. Off into the darkness of space to freeze and float forever. This is also an unlikely scenario for 99% of both galaxies, but it’s still going to happen to some of them.
Litalian t1_jdrt89f wrote
Reply to what will actually happen when we finally collide with Andromeda? by Wardog_Razgriz30
Distances between stars in a galaxy are so great that it will be near impossible for most stars or planets to collide. Though a few are likely to. We would almost surely still have our Sol And solar system as it has always been, just probably much farther from the center of our new galaxy than we were in our old. And this would apply to almost the entire galaxy. It would not be nearly as destructive as you probably imagine.
Edit to say that the most destructive part of the collision would likely be the force of gravity launching some entire stars, planets, and solar systems out of orbit entirely. Off into the darkness of space to freeze and float forever. This is also an unlikely scenario for 99% of both galaxies, but it’s still going to happen to some of them.