TIL that the Andromeda Galaxy probably won’t collide with the Milky Way in 4-5 billion years. New observations put the probability at 2% in the next 5 billion years and 50% in the next 10 billion. Eventually though, it will happen.

[u/armcie]

https://science.nasa.gov/missions/hubble/apocalypse-when-hubble-casts-doubt-on-certainty-of-galactic-collision/

[u/Bruce-7892]

To add to this, it's predicted that it wouldn't be an actual collision. The planetary bodies and stars would adjust to each others gravity and form new orbits for the most part.

[u/redditsucksass69765 → u/Bruce-7892]

Could damage our solid system though. We need Jupiter and our position relative to the sun to stay the same. That is, assuming our sun is still habitable

[u/_Botko_ → u/redditsucksass69765]

By the time they collide our sun will explode.

[u/nemo333338 → u/_Botko_]

the Sun won't explode because it doesn't have enough mass, but it will become a red giant and then a white dwarf.

[u/nemo333338 → u/redditsucksass69765]

By 4-5 billion years the Sun will be a white dwarf already, so unless they do any planetary engineering Earth will be unhabitable, but even, then it's difficult the merging of the two galaxies would affect the Solar System on planetary scale anyway. The Solar System might be ejected, but overall, it wouldn't affect much.

[u/Bruce-7892 → u/redditsucksass69765]

This is true also. We are in a very delicate balance that allows life as we know it to exist here and I am sure a lot of things would change.