Click on the planets to learn more about them! If you press the arrow keys in a certain order, you can find a hidden easter egg, if you manage to figure out the sequence click on the object that shows up! I'm planning on adding more to this in the future but this is what I have for now. (I don't know much about planet nine! Sorry if I got anything wrong, you can let me know in the comments if I did!)
Most art was from @tigergirl_kitkat she also helped me with the coding because I'm somewhat new to this.