So, I was nosing around the maw of a titan earlier, and had a thought. There's a distinct liquid audio effect (and also visuals) when thargoid ships enter and leave the yellow maw, and it seemed like it might be liquid ammonia.
Do we know if the thargoids live in gaseous ammonia, or liquid (kind of like ammonia fish) ? Is the maw like the letterbox of a Coriolis station, but with liquid ammonia inside rather than air/gas ?