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!

Hard to control, but fun when executed correctly

Interesting concept. It felt like I was not in control at all though, the learning curve is quite stiff! Congrats on the submission!