A couple thoughts, definitely my opinion might not be your vision for the game or outside the scope:
I feel like landings require a little bit too much finesse, and often the spin of the moon causes a fine landing to then become an impact while I’m waiting for repairs. I think a slightly wider margin of errors for good landings and bad landings before destruction would be useful, and maybe locking in place when you land until you launch again.
I also think a “auto-docking” feature would be nice, possibly as an alternative to but not removing manual docking, auto docking would be slower but safer
For ship to ship, a little bit more fuel would be nice, right now I feel like finding a stable orbit and shifting only when necessary is the only practical way to play, but being able to use burns to try and close distances to defend would be awesome. It may be more related to the landing issue then an actual issue with fuel since it feels so risky to land burning fuel feels like a similar risk.
I also feel like, if you’re intending to develop this concept further, fewer and more dangerous AI would be an improvement over a ton of relatively simple AI, and a wave or level system would be awesome.
I love the mechanics you’ve built, it feels very satisfying to play and I keep coming back I it but I think the frustration that builds from some of the sticking points makes it hard to really immerse myself in the game. Looking forward to future updates!