Wow this was really fun to play.
Impresice work on both visuals and audio.
Especially the UI and particle effects were a nice touch.
When in the 'air' it is sometimes a bit hard to aim when the camera rotates. Maybe interpolation a bit slower between the camera rotations could help.
In one run I flew away and couldn't get back on the planets. (fixing that would be nice, alternatively you could have a respawn(something like a teleporter) ?).
Really solid execution.