Tried a few launches and the idea is easy to grasp straight away: one input, one clear goal, and the dotted orbit rings around each planet make it obvious where you are supposed to land. The soft glow on the planets and the starfield look polished and calm, and the "Lost in space! Score 0. Tap to try again." message gets you back in quickly, which suits a short arcade loop. Two suggestions: the score counter is drawn right over the top planet, so when the next target sits at the top of the screen the number covers it and makes it harder to judge the catch. Also, a faint preview of the launch direction (even only for the first few attempts) would help first-time players learn the timing, because my first misses felt random until I worked out the orbit direction. Nice small project.