Lovely idea and execution! First of all, an idle game based on the solar system is not something I’ve ever seen, but it’s such a great fit! The music layers per planet are a great way to feel progress and they sound quite cozy. It reminds me a bit of Outer Wilds!. The graphics for the super nova are very cool. I also love seeing the tiny satellites.
My biggest complaint is probably that the game is not self-explanatory. I had no idea how to get science. It says “per orbit”, but my dudes are orbiting all the time! It cleared up when I went through the change notes. Maybe you could reorganize them into a tutorial? It’s also not clear without going through then what satellites do.
I stopped the game after I went supernova twice and got Saturn. Getting Saturn after a powered up Jupiter and seeing how weak it is quite demoralizing. Maybe Saturn could do something special to compensate? Not sure. But until that slog, the gameplay was great, engaging, friendly and gave me cozy vibes. Thanks for making me feel that way :)