Edit: You won't have to pay as much attention to this any more.

I encountered a series of problems when I was playing on my singleplayer survival world.

This is what happened: I decided to add my GalaxySpace schematics to my NASA workbench. It was going well until I noticed that the schematic for the heavy booster was instead unlocking the recipe for the durable rocket vanes. I happened to have a second heavy booster schematic, so I tried to input that. It consumed the schematic, but nothing changed; I still had no recipe for the heavy booster. I thought that this was a simple bug, and that the durable rocket vane schematic would, in turn, unlock the heavy booster recipe. So I went back to Ceres and acquired the durable rocket vane schematic from a dungeon. When I got home and right-clicked the NASA workbench, my game froze, and then crashed. It may have been because I right clicked it with a draconic sword from draconic evolution, but I don't know. Here is the crash report:
Crash1.txt

After this, I reloaded my game, and then my world. I was able to right click the NASA workbench, but when I tried to scroll over to a GalaxySpace recipe on the workbench, my game crashed immediately. This crash is more obviously a problem with GalaxySpace:
Crash2.txt

This issue is a major bug and needs to be fixed.

Forge Version Used: 10.13.4.1558
Galacticraft Version Used: 3.0.12.502
GalaxySpace Version Used: 1.1.7

Well...I tried it again, and this time it didn't crash. But I was right: the durable rocket vane schematic and the heavy booster schematic are swapped. This is now just a minor bug.

You have other addons?

No Galacticraft addons other that GalaxySpace are installed.