What is the collective noun for aliens?

There isn't a widely accepted collective noun for aliens.

Here are some options, depending on the context and your creativity:

Formal:

* Invasion of aliens

* Force of aliens

* Fleet of alien spacecraft

Informal:

* Herd of aliens (if they are like cattle)

* Swarm of aliens (if they are small and numerous)

* Colony of aliens (if they live in a community)

* Gang of aliens (if they are hostile)

Humorous:

* Zot of aliens

* Bleep of aliens

* Wibble of aliens

Ultimately, the best collective noun for aliens depends on your specific context and the impression you want to convey.