I really enjoyed the art style. For the Game Jam purpose, I think towing 15 planets was a little boring, I suggest dropping that to 5 planets until you have more mechanics in the game. I thought the way the ship towed the planets was funny (in a good way). The turning radius of the ship was very large so it took a long time to change directions, I think this could be tightened up to make turning easier. The story setup was pretty funny. In the end, I did decide to save the humans and tow earth into the black hole...I hope the stardust helps.
Nice submission and good use of theme.