Factorio Forums

Launching rockets full of space platform foundations? Pfft, that's so 2.0. Let's build in space instead.

This is a late game design for when you have fusion power to make building those big-ass late game ships easier. No quality required.

https://factoriobin.com/post/vkgzcq

In my experience this is very suboptimal. The asteroids spawn on the edges of the map and there is a huge void in each of the four quadrants.
So the chunks spent a long time just drifting through empty space and there seems to be some upper limit to how many can spawn.
You should get much more asteroids (and maybe even a tiny amount of fps/ups) by making a square and putting the collectors on the outside, it can be hollow.
Or the single best approach, if the extra conplexity of space flight are acceptable, is to just have a collector going back and forth between planets.