Cool concept! The art and the narrative are also really well done!
I did enjoy the puzzles, but it was a bit frustrating getting the aim down. Maybe just give the player an indicator of the trajectory when you are aiming. It also felt a bit too easy at times, like I could just spam planets and still pass with 1 star. I think I would have preferred if all the levels were accessible from the start but also a bit more challenging.
Overall really nice job! And thanks for checking out my game on stream yesterday