I like the concept of this game quite a bit, but I feel like the momentum is a tad off. Say, when I click on a planet that's directly north of an asteroid I want to destroy, I click the planet, release at around the same time the ship touches the edge of the planet, and all momentum grinds to a halt. Maybe a bit more deceleration could be needed?

Sometimes you spawn without any planet in the screen, but when that doesn't happen it's pretty fun!