I've been thinking of the Galaxy Menu, and well, I haven't actually come up with much:
This is a concept of star selection that I experimented with but didn't end up happy with. It was supposed to be to the top left of the Galaxy Map, and upon confirming star select, it would open its system of planets. I will keep considering the design.
The wrist computer does have potentials in its own right, I must say. It could work in place of the default GC menu. It could house the Galaxy Map, give an overview of your current tech tree (usable with a digital storage upgrade, maybe?) and maybe even serve as an in-game player guide of some sort.
Possibly you could even install a HUD module into your helmet that would interface directly with your wrist computer. Perhaps it could even have a "Bluetooth"-similar module to connect with your in-game friends for sharing tactical data.
First I thought you where wondering about their in-game use, but I see that wasn't the case.
To be honest, I thought of designing them as simple mockups fit for Minecraft, but I supposed I have the habit of getting carried away when doing something. Though aside from collecting inspiration, the basic idea is I'm initially starting with creating and tweaking a silhouette of the object I want to depict within a 16x16 space. Let's use the lander probe for this rough example:
I'm using a low-contrast 4 color greyscale palette. After creating the silhouette, the next step is about using a lighter color of grey for lighting and 'filling out' the body, while leaving shaded or dark structural untouched (like the landing engine and antennas). Additional details may be added in (like a sat-dish).
Next step is about experimenting with additional coloring and then finishing it off with some highlights. I supposed that's the best answer I can give.
I like it. Certainly it does make sense using blank blueprint for scetching and a book for documentations. I also like the idea of a tool representing the tinkering of proof-of-concept models. The wafer would presumably be a redstone powered CPU used for calculating complex equations.
Anyhow...
This is a little more elaborated early tech tree plus scoring conditions. I thought an orbital satellite could score you 2 points. One is for investing in the 'Lunar Program' node and the other point is up to the player to decide if it's going to be 'Extra Boosters' (direct ascent) or 'Orbital Docking' (Lunar Orbit Rendezvous).
About 'Mobility Aid', I honestly didn't really think through how it's located. It's regardless intended to be possible to unlock prior a Moon landing by taking advantage of the auxiliary task of a probe landing.
After a Moon landing the player may unlock the tech node 'Space Station' (as well 'Mobility Aid' if he didn't earlier). I am not sure about spacewalking as a milestone though. Presumably it's just a gimmick you score right after deploying the docking module.
After that the tech tree ascends to tier 2. Now you might need to achieve something more than just simply scoring sufficient points to unlock the start node of tier 2. I'm uncertain if the Tier 2 lander should already be unlocked at the initial node, or if that should be in a separate node.
'Liquid Boosters' are supposedly needed if you want to bring a docking module with you to Mars. Whereas 'Better Buggy' is mostly food for thought that could be connected to its previous counterpart. I haven't really figured out how the tier 2 section should be.
I'd imagine it would be practical as long as the docking process is relatively easy (possibly automated). A docked vehicle would offer direct access to its storage (using custom GUI elements) by simply right clicking on the occupied docking port from inside the station. You could also choose to board the vehicle, and once boarded, you would be able to undock.
To leave the dimension you'd probably just aim the CSM toward empty space and simply fire the main engine. Either it could be used for travel to another local space station, or you could return the planet you're orbiting. Landing on the host planet will be the separate crew capsule undergoing an atmospheric reentry.