Really fun concept! I played through several rocket launches, and I can already imagine how much my kid would enjoy this game.
The mechanics are simple and easy to understand. The character's voice is adorable, the sound effects are nice, and I liked the little story that develops as you progress. Having the game explain why your rocket failed or give you a tip afterward is a great touch!
One suggestion would be to include some fun science facts or explanations, maybe through achievements or after each launch. It could be a great opportunity to learn something while having fun.
I also think rocket construction could be a little more creative than just clicking along a line. I understand the idea, but maybe there's a more interesting way to represent that process. I did enjoy the welding mechanic, though!
The resource-gathering clicker mechanics are fun, but I wonder if they might become repetitive. Maybe different tools, materials, or types of meteorites could add some variety. Although I understand that clicking and gathering resources is part of this genre.
Overall, a charming game with a fun concept, lovable characters, and some really nice ideas. I enjoyed my launches and would love to see how it develops!