Well done. The game looks great and plays great, and the idea is interesting. I really like the addition of the asteroids.
I do think there needs to be some indication when a puzzle is complete. The first few levels I solved, and thought there was something left to do because I could still play and there was no ding or sign that the level was complete except the fade out - which I misinterpreted as failure.
That's really all I can think to criticize, and it's a bit nitpicky.
I also wanted to do something with constellations but I couldn't make it work mechanically and eventually scrapped that idea. I'm glad to see someone figured it out.
Great job.