Liked the quietness and the satisfying 'discorver' experience.
I felt the urgency and somewhat panic from the radio but at the end it wasn't that deep, even if really strange.
The Boötes Void region isn't actually completely empty in reality so it isn't much misterious, to me at least.
Overall liked the game atmosphere, would have liked something more unsetling. The space is so big and unknown, much can be done with it.
Good job!