Two weeks! It looks like this.
I got totally engrossed in writing the optional trip back to the ship. That vertical line on the left is the "main" adventure, the expedition into the structure. The ship section, aside from delving into some flavor and backstory, starts an important subplot which I intend to have an effect on your ending.
This was the most intense section to work on, the conversation with the ship's doctor. Mostly a relationship-building exercise, I want this to have effects on your later conversations with Aggie and the planned romance path. You can also begin an important subplot with the ship's captain that will shape later trips to the ship and determine your ending.
All of this at the moment is quite theoretical; I'm going to close up this ship trip and make it playable, then return to the main adventure for a while, then at some point offer another chance to return to the ship. At that point I'm going to need to figure out how to have things from this first trip affect the second--if you even went the first time. If you didn't, I'd like to reuse some of the material here so that the player doesn't miss out on important story content.
I suspect all this can probably be solved with simple if statements, counters and some extra writing; it's just a matter of getting my head around it all, but right now it feels quite daunting.