Great game! Planets look amazing, so do the ships. It was very interesting to explore this world, and the game has a lot of potential!
Shooting and moving is not an easy maneuver in this game, so it was hard to try to avoid enemy projectiles while shooting at them. I guess it would be nice to change the movement somehow (I like when the movement is more inertial in space games and you can release buttons and still move for some time), or to add shields to sustain some counter attacks from enemies.
Also, I think black holes should start to attract your ship from a greater distance but slower.