It is ludicrous that there isnt a map feature. Both in terms of gameplay, and in terms of story technology. (These people and the Aliens have the tech to fly to another planet and build massive sturctures, and there isnt even a feature to map the terrain?)
Lets face it, exploration is the name of this game. But also, it needs to be fun. Spending countless hours looking around in pitch black for resources becomes an admin task instead of a fun romp. A map, ESPECIALLY if it highlights where you have explored is essential to the fun of this game.
So, lets say that everywhere you go, for 10 meters around you, the map draws itself in.
Now, just because you have flown over an area doesnt mean you have fully explored the caves or terrain.. So the map could employ a color grading system… like…
NO MAP = Unexplored.
GREY MAP Areas = Areas you have flown over but have not explored available caves and options.
FULL COLOR MAP = All major caves and milestones have been completed.