Asteroid events like Demolior

[Slightquills]

Asteroid events seem like a really cool idea even if expanded to other planetoids.
If would give us a reason to have telescopes mid and late game.

There would need to be some balancing, of course.
1) Smaller asteroids shouldn't necessarily spawn asteroid fields, but maybe local asteroid fields would spawn these small and medium-sized asteroids.
2) Spawned asteroid events could be destructive to existing bases so limiting these events to those that already experience meteor showers would be more ideal.