I see the potential in this game but I had some issues playing it.
The slinging around planets and blackholes was fun but it was hard to predict where the anchor points were or what was attachable. A visual distinction like a bright glow or color distinction would've made a big difference.
A little bit more polish and intuitive controls would make it way more enjoyable.
I managed to spend quite some time on you game and really wanted to figure it out.
So don't stop! Great work!