This is an interesting game you made here. I've read some comments below and I do have a few ideas to share as well.
Instead of showing the types of the asteroids, show useful details like elements. I want to see which of them have neon and nitrogen in them. I care little if it's a rock or a ice type. Clicking on asteroids to see their elements is annoying.
You could create S rarity asteroids or boots the loot collection on the B ones. Rarity A can hold up to 300 of neon but a B one can only have up to 8? That is huge difference for a +1 in rarity
Neon is super rare to find compared uranium. To fix that, the scanner could have an option / upgrade to find a specific element, let us trade elements for elements or maybe the expeditions could help with that.
Make the travel % visible on the main screen. It would be much better to see and read that instead the the 3 X,Y,Z coordinates.
Keep it up and I look forward to the next update.