Overall nice visuals and beautiful music selection. To me it has a steampunk feel with an astrophysics theme. I love it.
The game controls are interesting. I'm kind of limited with these commands. The universe should make me feel immersive. I want to see more. Not just text info. Maybe you can implement an additional command like [take photo]. That way I can take a closer look at the star so maybe I get more interest in getting there. But it's just the opinion of an artist who likes pictures :D
I really love the graphics/UI and want to see more. Good job.