system
Given the following post, respond as if you're commenting on Reddit:
human
[WH40K] What are some intergalactic threats to Holy Terra?

I hope I'm using that word right.

I mean, are there any known threats/anomalies/races/anythings outside the Milky Way galaxy that we are aware of?

I'm already aware of Tyranids, I mean anything else?
gpt
Depends on your definition of 'intergalactic', which you did use right but extragalactic (outside the galaxy, as opposed to between galaxies) might be a better fit.

If you consider the Warp to be outside of the galaxy, then yes, there's also the many, many facets of Chaos to contend with. If you don't, then no, it's just the Tyranids.